Can I get an answer please!!!

My previous employer has submitted my withdrawal form in August for my provident fund payment. My employer stated that payment will be paid out in 6-8 weeks. Today marks 8 weeks so I decided to call momentum to find out what the hold up is. A lady on the line advised that there was a problem with my tax number of which I verified it over the phone with her. I asked her how long it would take and she advised that it would take another 26 working days. I told her that I cannot wait that long as I have already been waiting for two months now as agreed. The lady advised that she will escalate it to a relevant department that would speed up the process. But then how do I know this is true because if I didn't follow up with them I was still going to be waiting and hoping that my payment will be paid out.