Bad service

I app**** for my contract upgrade on MTN's website and received a call on 6th of June. Everything was processed and I even assisted the consultant with regards to the particular package and device and working out the correct monthly fee. I then receive confirmation via email and upon viewing the document I noticed that the monthly fee of R1168 is incorrect. I immediately notified them of this and to date they have not rectified the monthly fee. I escalated the matter and received an email confirming that my query was deemed valid and that the fee of R1068 I provided was the correct fee that I agreed to and that the agent continued to load the incorrect amount of R1168.

Today on the 19th I chatted to an agent that tells me that they are willing to compensate me or credit me 1 x half of the monthly and then I must continue paying the incorrect fee R1168 which amounts to R3500 extra for the duration of the contract.

The agent then tells me that MTN handles the billing directly and that they can't do anything to amend it. I immediately called MTN and their agent tells me that they can't amend 3rd party applications.

Now this package that I selected, all of a sudden does not exist anymore and they cannot assist me with this.

This is the deal that I want and they are not willing to assist me.