what the hell

I just received a statement for December and this is blody stopid I paid my account in full even before December and I have been trying to cancel my card since then with no luck at all .<br> <br> please can you clarify what the hell you lot are doing all day ? <br> <br> I can provide you with my till slip showing that I paid everything in full as well as please tell me how the hell I go about canceling my card seeing as when I do it inside Mr Price that nothing happens .