Edgars *****ing money on new way.

My mom has n problem with her account that sms transcription went of her account on August 2018 that she did not ask for because she has an MTN contract. She phoned the 3 months in a row and they said it will be correct the problem, an email was send to me also confirming it will be corrected and she will be contacted nothing has happend in the last 3 months and they just add interest to her account and now she is getting sms's from them to take legal action if she does not pay her account. We went to Edgards Northgate on Saturday 01 Dec 2018 to sort this out, also lots of promises made and will contact us within 48 hours, still no word from them. We went yesterday to Jet to buy some goods to find out that her card was blocked and must pay R209 to open her account after her account was on a R0.00 balance before they loaded the sms subscription in Aug. We went to Edgars Northgate again and the man that was supposed to phone her was not in yesterday. Is this a new way of *****ing money now from pensioners and other clients because they are not willing to help sort this out but. I hope someone from Edgars is going to phone me or my mom now.