f-1 visa expired during opt. taxes exempt?
My F-1 visa expired on September 2010 and I am start working UNDER OPT from November 2010 until now (February 2011). I noticed that I must tell the employer that I am under the F-1 status so then I do not need to get the social security and medicare taxes. But they say that I am not eligible because my F-1 VISA expired so then up until now those 2 taxes has been deducted from my payroll.
Can you please confirm what is the right thing for this? Can I still got the refund from my employer without claiming the form to IRS? If yes, what would be the valid argument? Thank you.