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A loyalty penalty occurs when existing customers are not informed about the best or cheapest tariffs available to them, or continue paying for devices beyond a reasonable cost-recovery period. As a result, they may pay more than new customers for identical telecom services – particularly in mobile and broadband. In many markets, regulators now require CSPs to protect consumers from this practice by providing clear, transparent information about contract status and alternative options.
Sustain helps operators meet these obligations while improving customer experience. It generates intelligent device and usage plan recommendations and supplies accurate, ready-to-use data points for personalised customer communications, ensuring customers are presented with fair, relevant and commercially appropriate options. The result: stronger regulatory compliance, fewer complaints, and improved retention and revenue outcomes
In a current UK class action loyalty penalty lawsuit against the main UK mobile operators, 10.9 million contracts are in scope and £1.141 billion damages are sought. The original claim included £3.285 billion damages, relating to up to 28.2 million contracts – although the statute of limitations reduced the claimable scope, the numbers show it was a bigger problem.
Supporting customer and contract lifecycle integrity since 2009.
Used in Tier-1 environments with millions of subscribers.
Data-driven device and usage plan recommendations that improve retention and fairness.
Designed to align with national and global consumer fairness and contract-notification rules.

Sustain is designed to help operators meet growing national and global requirements for transparency, fair pricing and end-of-contract notifications. Regulations such as Ofcom’s rules on loyalty penalties in the UK – alongside similar consumer-fairness frameworks emerging worldwide – all require accurate, personalised information for customers at key lifecycle moments. Sustain enables this by providing the data intelligence needed to stay compliant, avoid penalties, and deliver fair outcomes consistently.
Sustain helps safeguard customers from financial harm and unfair outcomes by ensuring they receive clear, accurate information about their contract status, device repayments and available tariff options. Timely notifications reduce the risk of overpayment, prevent unexpected charges and help customers make informed decisions at the right moment.
Operators also gain better visibility of contract milestones and risk points, enabling them to intervene early when customers may be at risk of bill shock, misaligned plans or unnecessary spend.
Proactive, data-driven engagement builds trust and improves satisfaction. Sustain enables operators to provide timely updates, personalised recommendations, and relevant product suggestions – all based on accurate customer intelligence. When choosing a new plan or renewing a service becomes effortless, customer loyalty increases and complaints fall.
Sustain supports both customer fairness and commercial performance. It identifies optimal plans for each subscriber, enables retention opportunities, and provides up-sell or cross-sell paths grounded in real customer needs. The result is better revenue outcomes, stronger lifecycle value, and more sustainable long-term growth.
Sustain brings together information from across your business – such as contract status, product and plan data, device repayment details, previous purchase decisions, sales activity and usage indicators – to generate personalised, commercially appropriate recommendations for each subscriber.
It can be used to segment customers, group related attributes and identify key lifecycle moments, enabling more targeted, timely and effective contract-management actions. Sustain enhances customer insight and decisioning while ensuring data is used in a controlled, telco-appropriate way.


Sustain enabled Virgin Media O2 to get ahead of emerging consumer-fairness and end-of-contract regulations by providing the intelligence needed to manage contract lifecycles proactively and transparently. It helped strengthen compliance while also improving customer experience and commercial outcomes.

Sustain delivers a configurable suite of data-driven capabilities that support regulatory compliance, protect customers and increase contract-lifecycle value. From generating personalised plan recommendations to enabling seamless downstream communications, Sustain helps operators deliver fair, accurate and commercially effective outcomes while meeting all relevant regulatory requirements.
Our telecom and data specialists help you extract maximum value from Sustain. Whether you need expert reviews of operational or regulatory risks, or hands-on support embedded within your team, we provide the guidance and delivery capability needed to enhance outcomes and accelerate results.

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A loyalty penalty occurs when existing customers end up paying more than new customers for the same service because they are not informed about better or cheaper tariff options. This often happens when customers continue paying a bundled handset-plus-service price after their device has been fully paid for, or when they are not made aware of alternative plans that better match their usage.
In many markets, regulators now require CSPs to prevent this by providing transparent contract information and fair tariff recommendations.
With tools like Sustain, operators can analyse contract status, product catalogues and customer usage context to generate intelligent plan recommendations. By comparing available tariffs with how a customer actually uses their service, Sustain highlights the most suitable and commercially appropriate options – helping providers offer fairer, more relevant deals while balancing customer value and profitability goals.
Many telecom regulators require operators to notify customers when their contracts are coming to an end. The purpose is to protect consumers from unfair pricing practices, prevent loyalty penalties, and ensure customers are aware of their options.
These regulations typically require operators to provide:
While the UK’s Ofcom was an early mover in mandating end-of-contract notifications, similar requirements have already been introduced – or are under active consideration – by regulators in multiple global markets.
Symmetry Sustain is designed to help operators comply with regulatory frameworks that require transparent customer communications, fair pricing, and contract-lifecycle protection — including rules aimed at preventing loyalty penalties.
While the UK’s Ofcom End-of-Contract Notification (EoCN) rules are the most clearly defined example, similar obligations exist or are emerging across the world.
United Kingdom: Ofcom EoCN & Annual Best Tariff Notifications
Sustain supports all core requirements: informing customers when contracts end, presenting their best available tariffs, and generating ongoing reminders for out-of-contract customers.
European Union & Member States
Across the EU, Sustain aligns with the European Electronic Communications Code (EECC), which mandates:
Several member states have adopted rules that mirror the intent of the UK’s EoCN model:
These EU-wide and national frameworks share the same goals as EoCN: fair treatment, transparency, and avoidance of loyalty penalties – and Sustain equips operators to meet them.
United States
While the US does not yet have a single telecom-specific EoCN regulation, Sustain aligns with federal and state consumer-protection laws that require operators to provide contract clarity and renewal transparency:
Other Global Regulators
Many non-EU regulators are moving toward similar transparency obligations, including:
Other regulated environments are likely to follow with the increasing global focus on consumer protection.
Yes. In many markets, telecom regulators can impose penalties if operators fail to provide customers with fair, transparent information about their contracts and available tariffs.
In the UK, Ofcom can fine providers that do not issue end-of-contract notifications or fail to present customers with their best available deals.
Across the EU, the European Electronic Communications Code (EECC) and national regulators enforce similar requirements around contract transparency and fair pricing.
In other regions – including the US, Canada, Australia and parts of Asia – consumer-protection authorities increasingly require clear renewal communication and fair treatment of existing customers, with fines or sanctions possible for non-compliance.
In short: if you operate in a regulated market and fail to provide customers with accurate, fair and timely tariff information, you may face financial and reputational penalties. Sustain helps you avoid this risk by ensuring the right customers receive the right offers at the right time.