Telkom took my money and does not want to give it back

My LTE contract was expiring in May 2018 and I already completed and submitted the required paperwork in January 2018. Logged a case with Telkom which was completed a couple of days later.

During May I receive another bill for end of May, even though my cancellation was completed. I called the call center on 11 May 2018, case number ( ********** 2), whom successfully logged a dispute and confirmed that no debit order will go off at the end of May.

1 June 2018 --- guess what? The debit order ran. Logged another case ( ********** 3) for a refund, which was supposed to be resolved within 72 hours. It is now almost a month down the line and still no refund.

Your CEO has confirmed in this article, https://mybroadband.co.za/news/business-telecoms/261953-telkom-revenue-flat-but-mobile-shows-strong-performance.html ,that Telkom business is not doing well. So is this how Telkom now stays in business by taking from their customers and not giving it back?

You have taken money from me that does not belong to you. Please give it back!