Parents lost 539 Approval document - Help on Visitor B1 extension

shriram2977

New Member
Hi,

My parents stayed for 9 months in 2015/16 and got their extension approved prior to their return. They lost the 539 approval form. What I got was acceptance email from USCIS and the USCIS Approval status.

They are applying for B1 extension. Please advise what can be showed to the consulate officer for their stay validity. Will this be an issue during their travel?

Any help is appreciated as they are 75+ and am looking forward to their visit.


Thank you.
 
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