Line suspended due to TELKOMS SYSTEM ERROR

Telkom suspended my service when I'm not in arrears, even prepaid my bill to get the lines open, and still nothing for days and been off since 18/05. The call centre is useless, I was never in arrears, I apparently went over my credit limit when I did my early upgrade but was not told anything by the store manager that did the upgrade, I'm beyond frustrated and can't log a complaint, so I have now attached everything for the consumer and goods commission