Appalling Customer Service

"Standard Bank: Debit Order R529.80 TELKOM TELK5027*******0831; from Acc.0**3. 2021-09-01 Query?***"

Thats what I was Debited on the 1st of September and when I called on the 3rd, I was advised that my account is up to date but to my surprise I received an e-statement stating that I owe R800+ including the R529. 80 that was Debited. I sent emails but no response, I called umpteen times still no answer, the IVR system tells me about whatsapp which have no option for my query. While I'm dealing with that I received an sms SUNDAY MORNING! stating that my service has been interrupted I need to call the 8ta team but all their numbers are not working! 8 want this sorted before end of business tomorrow or else I'm taking it further!!! And I want the 10 gigabytes of data that I purchased using my hard earned money refunded