What is it that makes you think a residency certificate request from the U.S. would be denied? Are you not a U.S. Citizen maybe? I'm just not comprehending why you're even asking the question, is all. But I can tell you this. If you don't submit the form 8802 requesting the U.S. residency certificate, I can guarantee you 100% it won't be denied and you'll have 24% of your foreign income withheld by the foreign tax authority. (One can't deny that which has never been submitted for approval in the first place.)
