********** contract opened by MTN

On the 30th of September 2017 Mtn deducted R716. 89 on my bank account. Same day called MTN spoke to Nomhle and she confirmed that ********** contract was opened on the 21st of August 2017 on-line under my name. She advised to email copy of my ID as well as the affidavit. On the 5th of October 2017 I emailed the document to MTN and on the 6th of October received an email notify that they did receive the documents and have to wait for the feedback. On the 23rd of October 2017, called MTN spoke to k****tso and he told me that the account has been closed. But need to call after 7 days to find out about my refund. Called on the 2nd of November 2017 spoke to Mpho and she told me to call after 21 days as there are still busy with the investigations. Called on the 7th of December spoke to the team manager by the name of kgomotso told me to wait as ***** department still busy, told him that can't wait anymore because it's over 2 months now I'm on the 3rd month and will take it further and he told me to go on. Please assist