Bad service in billing and network

Telkom has a bad service starting from billing into the network it's self and when I call no one what's to take the blame. They are billing me incorrectly and I ended up cancelling my other contract with them. They are debit incorrectly into my account just this monthend of June now my line is suspended I have to suffer now due to their faults.

Customer care is saying it is the billing department. Telkom forgets that there are many network providers who offer a better service. We are buying a good service than a brand.