This is interesting!
Here is what the e-receipt states (cut and paste of the pdf e-receipt I received):
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Thank you for filing your BCIS benefit application electronically. Your application will be electronically transmitted to the BCIS location at the address below for processing. You will receive an official Receipt Notice (Form I-797) within 7-10 days by standard mail with the same Receipt Number found at the top of this page.
Next Steps:
Send supporting documentation to the address below, if required.
• For information on required supporting documentation for this application, see the BCIS Form Instructions links listed at the following Internet address:
http://www.uscis.gov/graphics/formsfee/forms/index.htm .
• DO attach one copy of this Confirmation Receipt as a cover page for the supporting documentation that you are submitting.
• DO keep the extra copy of the Confirmation Receipt and the copy of the application for your records.
• DO NOT send a copy of your e-filed application with your supporting documentation.
• DO NOT include any applications or fees with your supporting documentation for this e-filed application.
Please mail in any supporting documentation to this address:
....
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As you see, there is no mention of any deadline at which the documentation is to be received, though there are quite a few DOs and DO NOTs
.
I just went by the receipt instructions, but I sent my stuff a couple of days later anyway, so I can't tell much at this point.
???
Chris