Useless customer care from FNB

If possible, I would have given them a -5star reveiw. I have been struggling with FNB connect now for two months to get my sim card working correctly. Being sent from one department to the other. Not receiving feedback or even responding to my mails. After a month and a half, I am now able to receive phone calls and messages, but I can not make calls or send messages. When I mailed them about it, I was informed that it will take another 7-21 working days to fix. Absolutely USELESS client service