Appalling Customer Service!

If I could give 0 stars, I would. I have experienced the worst customer service ever! After struggling with in-store assistance, decided to try the online service. All seemed great, new contract was created, but when I received my SIM cards, only a single contract was approved, although I did an online verbal contract for 2 contracts. Now I have to get hold of MTN billing, which doesn't exist. If you phone 083 135 there is an option for account queries, but if you select the option, it does not take you anywhere, so no way to get hold of billing. I must now sort out everything, but I can't, since no one is available to assist.