Extremely MAD !!!

I have called in to MTN in August to amend my banking details, the lady who assisted me advised that the debit order will go off my new account, on the 1st MTN took the money off the old account, I then transferred the money immediately to MTN. On several occasions I called in and MTN confirm every time that they received my payment. Now today they suspended my line, an hour after I confirmed with MTN that the payment was received. Now it will take 2-24 hours for my line to be reactivate. Why musty I be inconvenience for the incompetency of MTN ?????