Extended delay in payout and preservation

I resigned from my previous employment effectively on the 30th June 2021. I specifically asked for a part payout and part preservation. To date being the 30th Aug 2021 Momentum tells me they are still checking with SARS!! TWO MONTHS LATER? ARE THEY FOR REAL? I WANT THIS ESCALATED BECAUSE THIS IS NOT ON...to top it all, you send an email today, they take weeks to respond.