Telkom Mobile Worst decision ever

Telkom billing department is so ***********, its frustrating. They suspend my line , for 3rd time , even though the account is up to date . They send statements and also balances are available online but some how they suspend the line without proper checks. Their call centre tells you that it's the system error that can only be fixed by billing department; and that department cannot be contacted . Its the 3rd day now without the services that I am paying for . Having a mobile contract with telkom is like paying for the whole 24 months to be frustrated and tortured .