Put me on hold till I am forced to end the call

I called the 808 call center this morning to tell MTN that I cannot log into the e billing website to download my monthly invoice, due to the web link having some error and not sending me a 1 time pin to log in. It keeps telling me to refresh, which I did about 10 times , and still I could not log in.

So 1) Faulty Billing Service 2) Call center staff puts me on hold and left me till I had to hang up. I will probably be billed for the service call as well.

Nice way to treat a customer that has been with you since 1999 with only 1 number ever MTN!!