MTN not attedning to coverage complaint

For about the last month I have been experiencing issues of every call I make being cut off and sometime I have to phone back 3-4 times. I am probably wasting a lot of money as I presume you charge they for every call. This was not the case when I switched to MTN, as they had the best signal in the area I operate in.<br> I have reported the problem to MTN Coverage Complaints division on numerous occasions. They acknowledge receipt of the complaint but it has not been resolved or I presume attended to. No one from MTN has contacted me to inform or update me on progress made in resolving the matter.<br> I have provided them with all information they have requested.<br> MTN reference number: Case # ***