MTN BAD SERVICE

i have been on the phone for over 2hours and the Consultant by the name Zimkitha out me on hold for over 30minutes when i requested to speak to the manager, one of my cellphone contracts was paid of and closed in June yet they are telling me that i am in arrears, i spoke to 6 different people who are all telling different stories and transferring me from pillar to post. i spoke to Yanga from the retentions who confirmed that my account is indeed not arrears and was closed in June, all i wanted was my router to be re-connected as i am not owing MTN anything...Zimkhitha kept interrupting while i was trying to explain my situation and did not want to listen to me, when i requested to speak to her manager, she kept telling me no and she put me hold for over 30minutes only to came back and say her manager is in a meeting, very very poor service from MTN, i am extremely disappointed.