I’m assuming you’re confirming, but because people have used terminology this way, I like to make sure we’re being very specific. For example, I had someone say they verified with “documents” from their country, but then as helping, they said “oh, I used a passport from a different country.”
Also, what specific country is your passport from? Asking as if it might be from Ireland or something, might explain things a bit as well as I know someone had issues before. The difficulty being Ireland is both part of UK but yet not part of the UK, lol. Same issue
Other issue would be those who were from Gibraltar, which is a territory of UK but not actually UK itself. There was a bit of a conversation on that before at Not supported country? 🤔.