Pathetic service from MTN

This review is related to an email and telephonic call on the 27th February 2024 @ 13:41pm.

Just to give you some context:

I upgraded my contract in September 2023, because I was offered the Zflip Samsung with the option of a trade in on my old phone. I gladly accepted, concluded the paperwork and hand in my phone (A33). When I reviewed the first debit order It was R999 as appose to R400 as stated in my contract. I have since September to present being overcharged by R599.

I require urgent attention to this matter; A resolution to be reached ASAP and my refund before this month ends. I have been extremely patient in this regard and can no longer accept the poor service I'm receiving from MTN.