Guys, I am filing my tax return from भिसाtaxes.com. Specially because I need to correct my old filing. Got wrong filing previous years (filed 1040A instead of 1040NR-EZ) and so need to file amendment and fix the error.  For that they require copies of US visa. They say IRS require it. I just wanted to know if anyone has dealt with them before? If it is safe to pay and send them confidential material for the service.  Help.