H4 biometrics not received even after 8 months

Need urgent help!
We applied for our H1B extension followed by H4 & EAD extension during Aug 2020. My spouse employer processed h1b in premium and it got approved in Sept 2020, we applied H4 online. Till date we never received the biometrics or any update. Tried reaching out to USCIS couple of time and they said to wait. Not sure what else more to be done or how to get atleast the biometrics done, can anyone please suggest what can be done to get this big hurdle passed?
I also know a case where one of my close friend who applied for h1b, h4 & EAD in Oct 2020, they already got all 3 approved by Jan 2021 post biometrics and they already have EAD card in hand and they are in same place where i am. Its really so frustrating.

There is nothing that can be done to expedite biometric.