Jason, I've had the exact same problem and I continue to have this problem. I don't know why this works but it has worked for me 100% of the time.
If you can't receive the code for your accounts, just go back to social profiles and hit verify. It will pop up a PV again but just give it 24 hours and try again.This works perfectly for me. It's not your sims that are the issue.
I believe it is an issue with Instagram because I tried to do a PV on a normal browser, and it still didn't work.