H-1B Premium Processing Pending for 3+ Months | Fee Refunded. Anyone in the Same Situation?

My H-1B extension has been pending under Premium Processing for more than 3 months with no RFE or decision.
USCIS has already refunded the Premium Processing fee because they missed the processing timeframe.
My attorney has:
Contacted the USCIS Premium Processing Unit
Submitted a request to the CIS Ombudsman
Still no update.
Some additional context: My previous H-1B/I-94 has expired while this extension is pending. This is a 1-year H-1B extension based on my PERM being pending for more than 365 days.

Would really appreciate hearing actual timelines from anyone going through this.