Unable to get a simple balance on my acc

I have been struggling for more than a month to get a hold of someone in MTN for them to tell me what is my outstanding balance on my account. Every time i call an IVR says their services have been disrupted and the call cuts, i have been sending emails to customer care and they respond saying i must call 808, they understand nobody answers the call, this is unacceptable, i would appreciate if someone could call me back to deal with my query.