no help whatsoever from MTN

I have been trying to get hold of someone from the ***** department for months now, i was told by MTN that my account is nonexistent, yet i pay a monthly fee every month via my banking app. another excuse is that i am on an eppix account and they can't seem to find my contract details. another excuse is that i am under review, when i ask what review they just say i am under review. i want clarity about this matter