STRESSED VODACOM CUSTOMER

I've been in a contract with Vodacom since December 2021 and i haven't skipped a single month without making payment but i was surprised when they started suspending their service from October last year saying that my account is in aerials. I called them to enquire and told the that i did make the payment of R1890 in august, even sent them proof of my payment so many times, i was also assisted with sending proof of may payment from the shop where i payed but still they failed to make the payment allocation, instead they handed me over and my name was blacklisted. I don't know what to do anymore. Please assist