Annoyed and frustrated customer

I have been writing and calling sending emails but still not getting help as dstv multichoice is failing to allocate a payment made on the 7th of April and they have also made me pay for May but wasn't allowed to to watch or access my account as my services had be disconnected since and they can't help I don't understand what Is so difficult to allocate a payment because now they say they can not trace the payment u made , how cause the payment was made into their account number and it says Dstv multichoice so which makes me wonder if is this dome kinda way we're they are taking it for them self or is there some ********* activities happening in their finance department, I am also wondering if there was anyone who had been in a similar situation and was it ever resolved was the payment allocated ever. I am beyond frustrated as this matter has been dragging for a long time now and I doubt they will ever refund me for the month of May that I paid gorgeous but wasn't granted access to my account or services with I paid for, or will this matter ever be resolved as I have provided them with everything they wanted proof of payment I emailed it my bank statement also emailed it now I don't know how can such a big company like this and their finance department fail to do such simple tasks there is no way cos the only problem here was I added a number on my reference number not that the account number was wrong no it is paid to dstv multichoice and why now they saying they can not trace the payment this is rising alot of flags and ,they are taking advantage because of the fact that they don't have a competitor that's why they ate giving us poor service and do not attend to complains now it's June without watching tv since April and worst part is they made me pay for May as well, are you ever going to attend to my complaint or what ??????