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Hi there,
Thanks for reaching out!
Identification number is a number of any government-issued document such as passport, ID, driver's license, etc. or your national identification number.
You can find more information on how to fill Payment Agreement here: https://help.cgtrader.com/hc/en-us/articles/360015212278-Payment-agreement-What-is-it-and-how-to-fill-it-in-
If you have any questions, please contact us via support@cgtrader.com.
Kindly,
Austeja from CGTrader
thank you ! I though it was taxpayer number..