Invoice Dispute

I went to one of the MTN Branches about a month ago as it seemed that my last upgrade was not visible on the MTN system. This branch has also lodge a query (REQ ***) and I am still waiting for a reply<br> <br> I am disputing the Clawback revenue amount (R2051.84) that appeared on the March invoice. I was contacted by Nashua Mobile towards the end of 2014 to upgrade my phone. The phone was delivered via courier to me as Nashua Mobile was in the process to close their branches. I have not requested any changes to my contract or requested to migrate to a lower contract. I also do not understand why this claw back amount only appears on the March invoice as the phone upgrade took place prior Dec 2015. I also noticed a migration fee of R86.84 on the invoice that I do not know what is?<br> <br> Since the transfer from Nashua Mobile to MTN my account is much higher than what it was (so I do not benefit the smaller package, It needs to be restored to the same package deal I had when my account was with Nashua Mobile. MTN just ignores my query and that after several attempts to get it resolved. My bank account was debited in the meantime!<br>