Horrifying service

I just had the worst experience from telkom, firstly they debit me when they feel like it, thereafter disconnect my line stating that I am in arrears of which was caused by them debiting me a less amount, called into their call center of which they are of no help, requesting me to make a manual payment for a fault they caused. I am extremely appalled by the lack of service and nonsense billing system. POOR! POOR is even an understatement.