Facebook and Tumblr users who mistakenly signed up to a paid-for subscription service believing they were finding out who had viewed their profile could be due refunds after the regulator fined the firm responsible £45,000.
Callers who've rung BT's 118 500 directory enquiries number since September 2011 could be due a refund after the firm was found guilty of not making prices clear and keeping customers on the line for too long.
O2's eight million pay-monthly customers will be hit by a price rise of 2.7% from March – and if you're one of them, there's little you can do to leave your contract penalty-free as the firm has sneaked around new Ofcom rules.
MoneySavingExpert.com is calling for UK customers to be refunded after it's been confirmed US iPad and iPhone users whose kids ran up bills making in-app game purchases will get their money back from Apple.
BT customers began being charged for its previously-free 1571 answerphone and caller display services on Saturday. So opt out now if you have either of these services and don't use them, or you'll be charged £1.75/month for each – that's £42/year for both.