Most likely the same issue here. I didn’t put down the unit number of my friends address and I believe my card was returned as were the other mails (card was approved and mailed on 12feb). I did a short landing in canada and not currently there. I’m split in between applying for a PRTD (takes a few months time in Pakistan as I’ve searched on this forum) or wait out the 6 weeks & sign a solemn declaration to get new cards with updated address.