Received an RFIE regarding birth certificate

I received an RFIE that says:

"Submit a copy of the applicant's foreign birth certificate issued by the appropriate civil authority. If the document is in a language other than English, you must submit a copy of the foreign language document and and English translation translation. If the birth certificate is not available, ..."

In my I-485 application packet, I had attached my foreign birth certificate (in the native foreign language issued by the local municipality) as well as an English-translated copy that had the translator's stamp.

Is this an appropriate way to submit a translated document?

The one other issue I can think of regarding the birth certificate is that the birth certificate was issued years after my actual birth since my country does not issue birth certificates immediately after birth. Could this be the reason for the RFIE?

I also have a certificate issued by the hospital but it does not have my name and has my mother's name misspelled so I did not submit this. Is there any value in submitting this?

The RFIE does not state anything about the birth certificate I submitted. Does that mean that maybe, they lost the birth certificate and just submitting another copy of the same documents (copy of birth certificate and translation) would be enough? Or do they just send this same generic RFIE regardless of whether they received the birth certificate or if they had any issues with the birth certificate? And is there any value in trying to call/ chat with USCIS to further inquire about this?

Right now, my plan of action is to resubmit the birth certificate and the translation along with two affidavits from my parents attesting to my birth, two documents (tax ID and secondary school certificate) that contain my name, date of birth, and father's name, and a cover letter explaining that the birth certificate was issued later. Is this a good plan of action? Do I need to do anything else?