Most frustrating engagement ever!!

I have now spend 60 minutes with 5 different call center staff. No1: "I cannot help you, goodbye". Nr 2 transfered me to a supervisor. Ayanda adviced me to download the mymtn app. If I struggle "pls call me back". He is unreachable/untouchable - impossible to get to him since the app is not doing what he claimed it will. Nr3: "I demand to know where in the country you are calling from" - really!. Nr 4: "I don't know, phone the technical department on ********** ". This brings me back to the SAME call center - nr5 also cannot help me. The request is simple: I have 2 pre-paid sim cards installed in devices that cannot send USSD/SMS or receive it. I can also not remove the cards to put it into a phone. I need to know the airtime balance on these sim cards. As simple as that and NOBODY can help me (not even the MTN store!). If not resolved VWRY soon, I will go elsewhere as your competition understands SIM cards are used in many different types of devices these days and have enable numerous platforms to deal with this. MTN - you need to catch a serious wake call - you are busy pulling a Kodak moment on yourself!