UNRESOLVED MTN ***** CASE

An amount of approximately R149 was being deducted from my bank account .I have an existing contract with MTN. The ********** amount was deducted between March and April 2016 .I reported this to the MTN branch in bluff in October 2018 .MTN bluff blocked the ********** line and the debit order .After repeated visits to MTN bluff and repeated calls to MTN the problem was still not resolved. MTN acknowledged the ***** and claimed to resolve it however the amount due has not been returned to date . Yesterday I received a call from MTN advising that I am due for an upgrade on my current line which I have had for about 10 years .I then visited MTN bluff branch to process the upgrade and was advised right at the end that they could not complete the upgrade due to the ***** case still pending on the system . The MTN consultant has been trying very hard to assist since yesterday 21 August 2018 but she is also unsuccessful ,I appreciate her assistant as she is continuously trying and also keeping me in the loop however she is not succeeding in upgrading my contract due to the pending ***** case . Can someone please return my money due to me , remove the ***** case so my upgrade can be fully processed.