How can I purchase an additional data pass for my device as I can't link a phone number to my account?

cloudscreener

    I live in France and I use my T-Mobile 4GLTE each time I come to U.S.
    I would like to purchase additional Data, but this time I can't connect to T-Mobile because I'm as supposed to link a phone number to my account. I don't have an U.S. phone number.
    Thanks

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