MTN poor after sales serve's and lack of training

Mtn after sales and help desk have been with Mtn for more tan 20 years on a contract no with my new contract My time has been limited and when you try and get the air time you have exceeded your limit when you to increase there is 4 hundred different excuses and then the operator just drops the call when they don't know hell to help now it take so call 48 hours to fix the f up maybe you cant get on to the so-called website no one can assist you with MTN has no technical start that know what the doing its appalling you never get your Bills emailed to you .you have to phone in and request it