Why are some winnings being withheld from me (Non-US Players)?

All International (non-U.S.) players are subject to a mandatory withholding of 30% on their Net Winnings.

There is absolutely no way around this mandatory withholding of 30%. All tax withholdings will be remitted to the U.S. Internal Revenue Service (IRS) in compliance with IRS rules and regulations. Such tax withholdings, once withheld, will not be refunded to you.