Payment into inactive account

Good day<br> My name is philani Mathonsi I have account with edcon ,I made a payment 25/03/2016 into my account with is inactive ACC *** and I have called numerous times to rectify this so payment can be made into the active account which is ACC *** I have been receiving calls and sms's about my account being in arrears yet I have informed your customer services about this mistake,my bank is unable to reverse the payment and your customers services refuses or the related department refuses to also reverse the payment so I can correct my mistake, I am at a point of anger and frustration as this seems to be a problem I can not get assistance with,I have payed and it does reflect on your systems but I am still receiving phone calls and sms's can I please get a solution if not can I get my money back so I can sort it out my self,I have just spoken to your customer services agent who tells me I must phone customer services on *** but that is the number I called to speak to her in the first place.