Shocking service, Telkom!!!!

I am writing this hoping that Telkom responds. We had issues with Telkom regarding our topup package that went over its limit which they want us to pay for and stuff added which we never requested on a month to month basis except for the R50 night owl. Telkom said pay all the monies back which we queried and then its our fault. If someone can just listen and explain why a customer must be charged out of bundle rates for a topup package?????? We are currently paying our normal subscription and not using the service...