Proof?
Can you point us to any law that says this?
BTW their terms says that I am not working for them. They cannot even be withholding agent b/c there's NO employer-employee relationship.
Its like if a random person comes to you and demands to fill some forms
They are NOT my employer.
I am pretty sure they know very well what they are doing. They demand all those W8/9 etc forms so that they don't have to bother with determining employee tax status b/c there's IRS instruction that requires it.
Alright