Since last year December , 2022 each time I checked my i601 waiver processing status, it would shows that in August 2022, USCIS returned mail back to their office because it could not be delivered .
Meanwhile, I filed through a lawyer, I got notice of receipt through the lawyer through my email .
I am outside USA but my wife in the US is a citizen .
The lawyer said he has not received anything else apart from the Notice of Receipt .
Please what should I do.