Paper ticket for visitor visa extension

[immihelp]

Hello,

For the purpose of extending a tourist visa (B2) you are suggesting that we should submit a paper ticket and not e-ticket as a supporting document.

But airlines are nowadays issuing only e-tickets. How do we work around with this problem?

[immihelp]

They can still issue paper ticket if pay $25 more.

[immihelp]

Thank you for the prompt reply. Just one more last question, actually I am just confirming something with you -

My mother was issued a 3 month permit only, at the port of entry because she had an open ticket. She has to leave by Mar 9 as per the I 94 issued. I want to extend it by another 3 months.

So now should I buy the ticket for June 9th? If the extension is not given then we need to pay another penalty to revert the ticket to March 9th.
Is that the process you are suggesting?

[immihelp]

Also want to ask. Is e filing allowed for I 539 nowadays?

[immihelp]

Yes