Larger debits than on Telkom statement

Over the last three months I have not had any service from Telkom Mobile and they claim this is from non payment. I wasn't bothered to follow this through at first because I was working around the service but was always confused about the non payment as they have been debiting me without recent change. I recently needed the service and that's when I started making follow ups. They claim that the outstanding amount has been settled and the account is sitting with collections and collections will release the account and I can use the services in 2 to 24 hours. Still this did not make sense. I called at different times, coming across different agents, getting different information about amount owed, paid and when the service will return. I then went online to look at my bank statement and those of Telkom and found that Telkom has been debiting me exorbitant amounts after I had called to have charges capped in March. With those exorbitant amounts, I still don't owe Telkom. The initial outstanding amount was in January which was settled. The debits that go/went off on my account are larger than those on the Telkom statements emailed to me. They debit me more!!! This is theft.