If your billing dashboard suddenly shows a higher line-item in March, you are not alone. Many UK businesses have reported a mid-contract uplift on their Gamma account this year. The pattern is familiar: a provider applies an inflation-linked percentage, often based on RPI or CPI plus a few points, and the increase is reflected in the next invoice. For a small firm that budgets tightly, that extra charge can be the difference between meeting cash-flow targets or having to dip into reserves.
Why do these rises happen so often? Telecom contracts in the United Kingdom have traditionally included a clause that allows the supplier to adjust prices once a year. The clause is usually written as "price may increase each contract year by RPI/CPI plus 3.9 %" or a similar formula. The logic is that the cost of spectrum, network maintenance and back-office services rises with the economy, and the provider wants to keep the service sustainable. For most businesses the clause is hidden in the fine print, and the notice appears only when the new price is applied.
From January 2025 Ofcom introduced a hard rule that new contracts can no longer contain percentage-based mid-contract rises. Instead, any increase must be expressed in a clear pound-and-pence figure at the start of the agreement. The regulator also requires the provider to state the exact amount of any future uplift in the contract documentation. This move was designed to give businesses more certainty and to stop hidden inflation charges from creeping into budgets. However, the rule does not apply retroactively. Contracts signed before the cut-off date may still carry the old percentage clause, and Gamma, like many other wholesale-led providers, still honours those terms for legacy customers.
So how can you find out whether your Gamma agreement is subject to a rise clause? The first step is to locate the original contract document. It is often stored in a shared drive, on the supplier's online portal or in the email chain that confirmed the order. Look for a section titled "Price Review", "Annual Review" or "Inflation Adjustment". The wording will usually reference a consumer price index and a multiplier. If you see a formula such as "RPI + 3.9 %" you are dealing with a legacy clause. If the contract instead states a fixed amount, for example "£2.50 per line per month from 1 January 2025", then the price is locked in for the duration of the term.
If you cannot locate the contract, contact your account manager or the reseller that sold you the service. Gamma works through a network of partners, and the quality of support can vary. A good reseller will be able to pull up the terms for you and explain whether a rise is contractually permitted. Ask them to confirm the notice period that the provider must give before a price change takes effect. The law requires at least 30 days' notice, but many contracts give a longer window.
When a rise is announced, you have a few options. The most straightforward is to accept the new price and continue with the existing service. This may be sensible if the uplift is modest and the network performance meets your needs. A second route is to negotiate. Because the rise is based on a formula, you can often argue for a lower percentage or for a fixed amount that is more in line with your budget. Bring evidence of rival offers, for instance the rates available from EE, Vodafone, O2 or Three, and ask the reseller to match or beat them. Many providers are willing to adjust the terms to retain a profitable client rather than lose the revenue entirely.
A third possibility is to switch providers at the next renewal date. When a contract reaches its natural end, you can walk away without penalty and choose a new deal that better reflects current market pricing. The UK business telecom market is competitive, and most operators now publish transparent price lists that include inclusive international minutes, roaming across 83 countries and a range of data caps. Switching can also open the door to newer technologies such as full-scale 5G coverage, which EE currently leads in, or the merged Vodafone-Three network that offers extensive rural reach.
Below is a quick comparison of the main factors you might weigh when deciding whether to stay with Gamma or move to another supplier.
| Feature | Gamma (legacy) | EE | Vodafone/Three combo |
|---|---|---|---|
| Network choice | Single wholesale partner, quality depends on reseller | Own network, widest 5G reach | Shared network, strong rural coverage |
| Account management | Varies by reseller, may lack dedicated support | Dedicated business account team | Dedicated business account team |
| Inclusive international | Often limited, add-on charges apply | Up to 39 countries included | Up to 39 countries included |
| Contract approach | May contain inflation-linked rise clause | Fixed pound-and-pence rise stated upfront | Fixed pound-and-pence rise stated upfront |
If you are on a legacy Gamma contract, the table shows that the biggest difference is likely to be the certainty of pricing and the quality of support. Fixed-price contracts from the larger carriers give you a clear view of future spend, and the dedicated account teams can help you optimise usage across voice, data and roaming.
What should you do at renewal time? Start the process early. Mark your calendar for at least three months before the contract expires. Use that window to audit your current usage, how many minutes, texts and gigabytes do you actually need? Compare that with the allowances in competing offers. If you find that you are consistently paying for more than you use, a lower-usage plan may save you money. Conversely, if your business is growing, look for plans that scale without steep overage fees.
Contact us at Compare The Networks for a free, no-obligation quote. Our platform pulls together the latest business mobile deals from EE, Vodafone, O2 and Three, and we can show you side-by-side comparisons that include inclusive international minutes, roaming and device financing options. A quick chat with one of our telecom experts can also reveal hidden savings in your current Gamma arrangement, such as unused lines that could be terminated or bundled services that could be renegotiated.
Remember that the Ofcom ban on percentage-based mid-contract rises only applies to new agreements. Legacy contracts remain bound by the original terms until they naturally expire or are renegotiated. By checking your contract, challenging any proposed uplift and exploring the market, you can keep your telecom spend under control and avoid surprise bills.
If you need help interpreting your contract language, or you want to see how the latest offers stack up against your current Gamma service, get in touch today. Our team can walk you through the fine print, calculate the impact of a potential rise and advise on the best course of action for your business.
For more insight into how UK telecom costs are evolving, read our recent posts on mid-contract price rises and 2026 telecom cost outlook.
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