Not come up on a search.
The missus was checking her iphone / o2 bill today and spotted charges she doesn't recall making.
They are 090 premium numbers, 1 for £6odd and 1 for £1odd.
A quick search via google brought up whocallsme and other people complaining of the same problem, probably caused by an add appearing in an app (mostly bubbewrap) but she's never been promtped to "dial".
Is there any advice before we go to o2 to try and claim the money back?
(I realise this may not be o2s fault, but figured they'd be our 1st port of call before going to the apple shop).