after I arranged my My Home L contract by phone, I received two s flex sim cards I had not asked for. I figured out that I had to cancel within 1 month which I believe I did, but I am now noticing O2 has been charging me all this time for the 2 cards. I am obviously extremely unhappy about this and feel cheated. What do I need to do to ensure cancellation and refund of all the money I paid?
edit o2_Tobias: moved from o2 Mobilfunk: Vertrag & Tarife to our English Community (mobile)