i have applied for H1 to H4 and EAD concurrently and got approval for I539(H4) as well as EAD(1797A) and both of them valid till Mar 2019. I have not received EAD card yet. Can I start working based on I-797 Approval Notice. USCIS has send EAD card to old address and USPS didn't forward it to my new address(Since I moved) and EAD card has send it back to USCIS. Now I need to raise e-Request to re-send the card. Mean time, I have got an offer from one of the employer.
Based on I-797 Approval notice, Can I start working?
How long does USCIS takes time to re-send it? Is there a way to expedite re-sending EAD card?