US Immigration from Pakistan

My k1 visa interview was in January 2020 CO the end of interview refused to grant me visa he did not give me any 221 g paper and i recieved an email from embassy after several times inquiry last month where they were saying they preparing your case for revocation and 2nd email came from uscis where they were saying we got your case from embassy it never will be revalidated when uscis gets your case back from embassy u will not be updated further refile 129F.
After 20 days of those emails I got another email from embassy on 12 August where they saying you r in AP and you will be requesting more docs plus updated medical is require we also inquired from congressman 3 weeks ago he was saying I just checked from your inquiry your case sent back to CO on 12 August last time my case was updated on 8th September with same status like before "refused" I think 6 times my case has updated in 8 months with same status Refused.
Can anyone tell me what's going with my case please

what is the purpose of DS-5535? I received it under 221g, for wife.

How long does it take NVC to respond after the approval of one's case at USCIS! my case status changed to sent to dept of state on 20th July, ND on 22nd to your case approved, after that I haven't heard from NVC, or receive any mail or email. Is it normal, because it's gonna be almost 2 months now since my case approval. Recently I contacted NVC through public inquiry email ND they said they haven't received my case yet, nd when I contacted Vermont centre they said they have already move our file to dept of state. In this situation what someone should do.

Hello guyz i am from Pakistan i got married in Philippines i had DQ in 29 june2020 and waiting for interview date. I have a question our marriage papers attested from Philippines foreign office but we didn't attested from nadra office if i really need to attested our marriage papers here in pakistan on interview? But we already have dq

Two weeks ago we got call from ISL Pakistan embassy to come for emergency interview because our medical is expiring next month. (First interview cancelled in Apr)

Last week our interview went well. Few questions only, and gave my wife to form to register to passport pickup. VO said be ready to travel in 2 wks.

now status says Refused (e.g AP)

why? Our case is CR-1, nothing I can think of being missed or No 22g form was given.

I met all the requirement for the process

Little confused!!!