SUPERSONIC: PATHETIC SERVICE AND OVERCHARGED!

MTN's Supersonic Fibre is PATHETIC and has overcharged me R1500 in the six months April to September 2020! I have called 5 times, submitted proof of payments, etc. and every time someone from Finance will call me back....but it never happens. I am on an uncapped 10mps fibre line @ R699 per month. However, my bank account is being charged R999 per month, while my Supersonic statement shows that I'm not paying my monthly account and that I owe Supersonic around R4000! Once I'm refunded I'm cancelling my contract and moving on. STAY AWAY!!!!!!!!