Bad disgrace of customer service

Good morning all I am so so disappointed in MTN as a prepaid customer on the 4 of Nov I called them complaining that I cannot check my balance neither load airtime and as a customer I always load airtime and buy data through the *136# USSD I phoned twice to get this problem sorted as I use my phone for work still today this problem is not sorted I can't check my balance I can't load airtime I have been a customer of them for over 20 years but now j had my straw because id I leave my house from the WiFi I cannot get any messages from work or e mails because I can't load airtime to buy data this is poor poor poor service and a utter disgrace to Customer service and I think I must just shift to another network because now I cannot deal anymore