The RPI (Retail Prices Index) and CPI (Consumer Price Index) are measures of inflation used by UK mobile networks to adjust pricing each year, usually in April.
Every April, network providers review their pricing based on these inflation measures. Here is how each network handles it:
Vodafone and EE follow a CPI-linked increase. The CPI figure is published in January, and an additional percentage is added on top.
O2 applies a fixed increase of £1.50 per line every April, regardless of inflation.
Three uses a tiered approach:
- Plans £0.01 – £9.99: increase by 50p per month
- Plans £10.00 – £20.00: increase by 75p per month
- Plans £20.01+: increase by £1.50 per month
These increases apply for the duration of your contract. At Connection Technologies, we ensure you understand the exact costs at the point of sale so there are no surprises. Read about the 2025 Ofcom ruling on price hikes.