US Immigration from Bosnia-Herzegovina

Im filing out form i-134 & its asking for naturalization number or citizenship number..

I was not born in the U.S but im a citizen I have an U.S passport, I know that I received my citizenship through my mother but I have no certificate.

What are my options? Do I select "by another method & explain" or?

We sent my husbands AOS packet last Thursday (the 11th) and it left the Salt Lake Distribution center and on the 15th it updated as in transit

no details on the location whatsoever.
It was supposed to to arrive yesterday.

Has this happened to anyone else lately?

My husband has a high school equivalent which he translated and certified (by a notary whose native language is also serbo-croatian). We noticed on the language skills that his high school diploma unfortunately does not list his English on the transcript and his grades or documentation showing his skills in English are unavailable.

My husband put together instead a very eloquently put written statement about his background in English and his proficiency in it and explained that those materials are not available to us at this time. We plan to have this sworn statement notarized as well.

Will this be sufficient?

I keep hearing rumors around that it is going to take forever to get our NOA1. My husband has a month exactly left on his visa and we are just finishing up a few loose ends with the SSA and waiting on his number and probably are a week or so out from really finishing our stuff.

Are AOS NOA 1's having a big back log like I-129F backlogs or are they prioritized? What would we use as proof of a pending AOS application prior to an NOA1?

So my husband and I went today for his social security number application and we re told it was going to be needing to be verified by dhs and that this can take up to four weeks to happen.
my question is are we going to run into problems? Because at the worst case scenario mark (four weeks from now) right on the mark of the day of four weeks from now it is going to be 75 days.

are we out of luck?

the social security lady says she hopes it s sooner but....