OH Yes I have same case and i received all easily. you will only get 50% of your total sum. First ask to your employer it.In turn they will receive the 50% of the money that they added in your social security and medicare. if they do not do that for you : All you need is to fill in some form 1or 2 page ( i don't remember number now but if you look on tax filling instruction for non resident alien you will find it) and letter from the Job from where they have deposited your money in social security and medicare. Finally you have to send your application to the office in your state they send your social security and medicare not in regular tax filling address. Ask your employer they will tell you. they will return your money in 6-8 weeks goodluck