Unsatisfied

Ever since I've got Dstv I never missed an account to pay. In the month of April I've changed my banking details and paid Dstv from my new account. I've paid them oin the 30th of April ********** Now for some reason they cannot allocate my account of R434 to my account and says that I am overdue and must now pay R477 ! This is outrageous! I've sent 4 emails with proof of payment and have the proof of payment on my phone that I did pay them. I've contacted the 5 times per phone call and I always don't have airtime to phone them to find out what is going on with my account. I've sent them a email to say that I want my money back that has not yet been allocated and that they must disconnect my subscription with them. And every time I phone them they keep on telling me that they can see that I did sent the proof of payment to there email and that they did get it. But for some reason the account department has not allocate my money to my account with Dstv. This is totally unprofessional.