Billed amount change after payment

Following my return from a holiday, i rushed to make payment for my subscription as I had received a message stating that "we would hate to suspend your viewing" please pay the specific amount. Having seen the the message and checking my balance due on my DStv app, which was the same as the one stated in the message, I made payment accordingly. To my surprise I got home to my viewing having been suspended. I called the help line and I was told to simply send proof, which I did, and my viewing would be reinstated. An hour later nothing had happened. I called again and was subsequently told that my account is in arrears as of today and a message was sent to my phone and so on. Not only had i made the payment according to the amounts communications from DStv though multiple channels but the message claimed to have been sent is not anywhere on my phone. I refuse to pay any more than what was communicated to me via all the channels I could access on my side. kindly rectify this error as I have been diligent in my payments and this is not my error. Very disappointed.