US Immigration from Dominican Republic

Hi all, my family member and I are writing in with a question - he had trouble locating this specific forum. It's been a long time since I did a K1 and all the times have changed a ton since I went through it.

Family member (USC) is petitioning his fiance (Dominican Republic) on a K1. He got the Noa2 in mid-October. He can't call NVC..they only have an unmonitored line now "because of covid".

He has emailed NVC several times but the emails back say no case has been received yet and to wait at least 6 weeks from NOA2...even though he didn't email prior to 6 weeks (!!) and only emailed around 8, 10 and 12 weeks.

Is there anything else he can do? He's worried that they've lost his petition. Does waiting 80+ days for the RECEIPT (not that it's left NVC or that the consulate's received it but that NVC has received it) seem normal?

A friend of mine bought a check for his aos package, at the bank they write the check like show on the picture.

My concer is, will usci accept this check,?

Because on the part that say pay to the orde of: it is uscis name and the form i-485 too

so my stupid behind forgot to put where my husband is applying for his immigrant visa (Dominican republic.) so now I have to file i-824. This PART 2 is confusing. What do I put to correct my mistake?

My husband s green card is about to expire in April. It says that we both have to file the form to remove his conditions. So does that mean we will fill out two different i-751 forms one for him and one for me?