Why has my network bill increased?

The networks adjust your mobile bill every year according to the Retail Price Index (RPI) or Consumer Price Index (CPI) rate of inflation.

Each year, your Pay Monthly airtime tariff will be adjusted according to the RPI+ (O2) or Consumer Price Index (Three & Vodafone) rate of inflation. Your bill will be adjusted in April by the rate announced in January (Three & Vodafone) and February (O2) that year plus 3.9%.

What is the Retail Price Index?

It's a measure of inflation published monthly by the Office for National Statistics.

What is the Consumer Price Index?

It's a measure of inflation published monthly by the Office for National Statistics.