Looking for ~60GB+ phone plans with roaming in ~200 countries.

Hi, I have a question for business banking does official IRS EIN letter counts as proof of address for my business?

Hi, do you know any good provider for a proof of address that is accepted at Relayfi since there are very strict with their proof of address requirements. I have provided a landline phone bill and it was rejected. Do you know any good alternatives that might give no headache?

If one is of the following, what would be the most ideal proof of address? 1) Nonresident Alien who is residing in a country, with no tax treaty in the US. 2) It's cost prohibitive to fly to the US. 3) Proof of Address, for Residential Address, and mailing address abroad. Would it be Anytime Address or other setups? Thank you in advance.