MTN TROUBLE

My mother (elderly woman) had a terrible experience with MTN and they have yet to help her. A debit order was mistakenly deducted from her bank account for R 8518.28’s worth of mobile data. MTN said that she bought data on her phone for that amount on 3 December 2021. The data was credited to her phone, but she does not want it. She never bought it. They can remove the data, as she cannot afford R8518.28’s worth of data and have no use for that much data. She did not purchase the data, not even by mistake. So much time of our family with regards to this and we have still not managed to rectify the issue. She still now have the outstanding amount of R8518.28 on her MTN account, as she reversed the transaction from the bank, but she know that they will blacklist her if she do not pay it. The shop assistants at several MTN branches are also unable to assist her, they just shake their heads and do not know what to do. We really are fed-up with wasting all of our energy and resources with regards to this, to no avail, and are super frustrated with MTN as someone was clearly trying to ***** her money. This is ridiculous.