Unresolved account in arrears

I paid my Dstv subscription as per usual on the 27th of August in the evening. The first of September i get an arrears message on my Tv, called your call center spoke to your agent whom reconnected me and said he received my POP and then i decided to change my payment date to the 2nd of every month. Since then i have received an arrears message.

Decided to call in again then the call center agent tells me that the payment i made on the 27th of August was in actual fact for August(Puzzled) Asked her how? because every month end you pay for services that you are going to receive the following month and so forth. (PLEASE EDUCATE YOU AGENTS ABOUT THIS!!). Again the arrears message happen again on my Tv. I call again then speak to your call center agent(mind you i have spoken to two agents at this point and i'm speaking to the third one) tell him about this then he asks for the POP again and i email it to him, in the meantime he is reconnecting me and he will resolve this matter.

On the 11th i wake up to the arrears message again decide to go to multichoice in Randburg, i go to number 22 send the lady that was assisting in resolving this matter the POP again!!! (All the agents i have spoken to asked for the POP and i have been sending it(( 3 TIMES ALREADY)) sent it to her) She walked out 2 times already saying she went to your finance department and they cannot allocate the payment i made. but the payment was made from Nedbank internet banking. A reference number is there and i used my customer number, doesn't multichoice call the bank to verify a payment( just like in my case i sent a POP)

Please resolve this i am not going to pay for SEPTEMBER twice and i am not going to pay for reconnection fees whereas it is not my fault that your agents/ finance department (one of the two) is not doing their work.