Debit Orders Going Off For Three Months after Denied Contract Renewal

Worst experience ever. I relocated and I asked them to move my line, they said they cannot because Vuma Tel installs in my area and they suggested i apply for an alternative service. Tried to convert my contract to LTE and they said they cannot proceed with the application because I dont meet the affordability requirements?? I never missed a payment with them. They cancelled my contract but they are still debiting my account even though i call them every month to ensure that no payments will go off. They assure me everything is cancelled but they still send me invoices and debit my account. Still no signs of a refund being granted as they have "escalated" this query 4 times already. I'm very angry. boilling angry. Never again will i use any Telkom service where i can help it. The call center supervisor Nandipha from CapeTown is also a ****. This matter is NOT being investigated and they are just looting my account.