Payment not reflecting

I have had this problem before and it took me about 2 months to sort it out with Box Office, I am not sure who is working with the payments made to them but they are ***********. I pay money over via EFT to my box office account and rent movies till I have no credit available them make another payment, I have never watched a box office movie on debt, I always pay up front, now once again I have been battling 4 months with box office trying to prove to them that I do not owe them R 243.00 as I paid over R 300.00 via EFT to them in order to watch movies. Every time i rent a movie i get a sms stating that i have now rented this movie and I have so much credit available. Because of this problem i have not been able to make use of Box office for 4 months. I EXPECT BOX OFFICE TO SORT THIS OUT ASAP AS THIS IS FLIPPEN RIDICULOUS. As i said in the beginning its the second time that i am battling with this.