request for itemized billing - requested for 3 weeks not recieved to date.

HI , i have requested from MTN 2-3 weeks ago itemized billing for a period during which i was travelling. despite waiting 2 weeks i still havent recieved the account. i then call again and am told that the matter was escalated i would recieve with 72 hours- i then call again for the 3rd time after not recieving the statement, i am then told itemized billing needs to be requested for , all in all it took me 3 weeks to get this and around 4 telephone calls, i think this is very pathetic...i mean you keep escalting it but never resolve. this is not my 1st experience with MTN , it takes 5-7 calls to you to get a simple thing done properly...