<prompt> Human: I have been selling books on Amazon for several months. The money goes to a US bank account and is then transferred to my Australian bank account. I dont have a W-8BEN or an ITIN so the IRS takes a 30 cut.First things first, I know I should have set up an ITIN as soon as the money started coming in, but the hassle never seemed worth it I think my tax withheld would go down to around 10 if I did that. My income from the US for the past year was around 8,000, and the amount withheld from me was around 2900. My letter from Amazon states all this. Do I have to...do anything? Is there any way to get that or any portion of that 2900 back? Or is it a sunk cost? Do I have to file a tax return? Ive never been to America, this is my only dealings with the US  <response>: upload the letter from Amazon be sure to black out the names plz need to see what they want 