All tariff prices are quoted per month. Other tariffs are available. All prices exclude VAT. Contract term is for 24 months unless otherwise stated. Full terms and excessive usage policy apply. Delivery delay may apply. Stock is subject to availability. Subject to status, credit check and minimum term contract. Calls and texts to standard UK mobiles/landlines only. 10 chosen UK landlines subject to opt-in. 8p/min offer to standard mobiles/landlines in selected European countries only. From 2015, your pay monthly plan will be adjusted every year on your April bill by the Retail Price Index (RPI) rate of inflation* announced in the preceding February. Find out more. To find out more about RPI, see http://www.statistics.gov.uk. We use: Retail Price Index (RPI) rate of inflation: Percentage change over 12 months.