Just a quick question, after I e-file my petition, do I have to wait for the I-797 form to arrive to mail my supporting documents or I can use the system generated receipt number? I searched USCIS site, but couldn't find this information.
If anyone has a link to USCIS site, I will appreciate if you can post it here.
Thanks.
If anyone has a link to USCIS site, I will appreciate if you can post it here.
Thanks.