Failure to release funds

It has been over a year and I am still waiting for a refund on a fibre account that was cancelled and overpaid. My profile still exists and I still get an invoice monthly saying I am in credit but despite sending a dozen emails requesting that credit be reimbursed and the profile closed completely, nobody replies. This is typical of the shoddy service from Telkom and the reason we cancelled the contract in the first place. If you are reading this Telkom, PLEASE, reply and let's sort this out. The amount is very small but the legal fact is, that owed balance is MY money - not yours, and withholding it and gaining the interest - is both ********* and *****ulent and constitutes theft. You have in your possession money that DOES NOT belong to you. If you continue to fail to reply I will file a complaint with ACSA and the CGSO and as well as possibly lay ******** charges.