Mtn South Africa is starting to get into my nerves, its high time i shop around for better

Mtn is really getting into my nerves ,imagine loading airtime and calling somebody but the last minutes of your call are spent by this old lady repeatedly saying that you only have enough airtime for a short call please load airtime , which frustrates me a lot because when i load airtime its obvious i know probably for how long the call is gonna be, so i have it in mind that I'll run out of airtime soon ,so i dont need no one disturbing me from that little airtime I've got.

And after all calling the customer care to lay the complain all they do is laugh and make you feel very tiny even more than you felt from the call One thing i hate the most is being disturbed especially when calling because most of my calls are when i call my clients and this makes me angry

I think i have to shop around for better Choose these networks carefully