Vodacom Is a *****

Vodacom ripped me off an amount of R1080 on the 2 March 2021, that I paid cash in Vodacom Parow Centre, until today that amount it's not appearing on my Statement, what ****es me off I have been calling them since the day I received a statement that was telling me i was must an amount of R2160 on 1 April 2021. Until today my issue is not resolved my account is in arrears, I don't know what to do or who to call. I had been emailing them my proof of payment i don't know how many times.