Unauthorized Debit Order/********** Debit Order

My mom has fallen victim of the ****. On the 1st of November 2017 R1600 was deducted off her account and the reference was stipulated as Mtn Sp,she went to reverse the amount at FNB Westgate. On the 1st of December 2017 R7 560 was deducted again and the amount was reversed again! She then went to Mtn to find out why they were debit money off her account without her knowledge and she was told that someone took a contract phone early in 2017 and she asked why they did not verify that it was actually her and she confirmed that the sales consultant could not give a clear reason and told her it would be investigated and promised that no debit orders from Mtn will go off her account. On the 31st of December they deducted R11 600!!!!!!!!!!!!!!!!!This is a waste of her precious time to do reversals and making follow ups as to what investigations are done without any concrete feedback. I hope this matter will be sorted as it is an inconvenience on her side.