Mobile phone companies have been urged to do more to stop consumers facing large bills shocks when they download music and search the web on smartphones.
BlackBerry users will be given a selection of free apps as compensation for blackouts last week that left millions unable to access emails, BlackBerry messenger and the mobile internet.
Millions of Orange and T-Mobile customers could be left with snail-like internet speeds on their handset because their network has failed to update its systems.