You could try sending the entire response again. Otherwise it seems likely that USCIS really has all of the pages of their own RFE.

It is up to your home country whether or not you can be readmitted into the country. The U.S. cannot prevent you from returning to your country.

If you do not have employment authorization, then selling your blood would constitute unauthorized employment.

If one has never been in removal proceedings, then one cannot have filed any application for relief from removal.

I partially agree with my colleagues. Under the Marriage Brokers Act, USCIS will make sure that your fiance knows about your alcohol or drug history.

If your child immigrated to the U.S. and was in the custody of his U.S. citizen father, he should be an automatic U.S. citizen upon his admission...

It will impact your ability to adjust status, and to be readmitted to the U.S. but it does not impact the EB5 petition.

Perhaps the fraud in question was marriage fraud. If so, then there really is no waiver except 237 in court, and such a finding would bar any...

No, it is no longer possible to return to the U.S. after foreign travel if you are in removal proceedings, even if you are a lawful permanent...

Send another one with the payment, and that should work. You may wish to fasten the payment and the application with a rubber band or other fastener.