Freephone

The cost of many calls to 084 and 087 numbers has actually gone up as Ofcom rules which are intended to make pricing more transparent come into effect, MoneySavingExpert.com is warning.

Mobile users can call 0800 numbers and any other 080 number for free from Wednesday, as part of a massive shakeup to the telecoms industry by the regulator.

Many leading banks, insurers and energy companies are making existing customers pay to phone them while offering free numbers to new customers, consumer group Which? has found.