sucking service, incompetence staff

What a SUCKING service I received at MTN after been their loyal customer for decade, i called MTN 135 call center since the 10/11 which i spoke to a very good guy who he was going to call me on Monday the 13/11 which he did but missed his call, since then i have been calling MTN n holed for more than 48 min with no excerpt been transferred to 100 consultant who doesn't know what they doing. after been with MTN for than 20 years i am ready to move out. there is so many bunches of incompetence staff at MTN. wish i can get the name of the guy who helped me on Friday 10/11 and he sounded like he knows what he was doing. it is so frustrating for not getting help for something you are paying for monthly. they can just cancell all my contract realy