Paying for an expired, inactive contract

My mobile contract ended on the 12 September 2017. I've tried on number occasions without success to cancel my account. I am still currently being billed for a contract that is past it's expiration date. I've called into the call centre numerous times, spoken to different agents, followed requirements and supp**** the necessary documentation prior to the cancellation date.

Before the end of my contract I had blocked my sim as the phone was lost, I continued to pay out the contract amount until it had expired. I mention this as I find it hard to understand how a contract with a blocked sim can be extended not to mention I was never contacted about renewing or extending the contract even though I had given alternative contact details and still receive emailed invoices each month.

There are debit orders continuously going off on my account and when I reverse the debit there's a payment rejection fee all because Telkom is unable to their jobs process the cancellation as requested. This is totally unacceptable, get your affairs in order, cancel the expired contract and stop invoicing for inactive account. I will be reversing any amount debited past the expiration date of the contract.