Vodacom - worst customer service

Worst customer service to experience - my bill shows in arrears and I have never missed a payment since 2010 when I started as a contract customer. I've sent proof of payment to each email I was asked to send to and when following up I'm told the proof of payment was sent to Finance to allocate to my account. So from begining of March 2024 my account shows in arrears. I've called *** several times. The issue is they (Vodacom) can't see my February 2024 payment that I made via Vodapay, which has been my mode of payment for a while. It's 15th May, I viewed my account and it is still not updated. What's irritating is Vodacom has been quick to put me on credit bureau that my account is in arrears and I see this as defamation of my character.