hextree

Zero reason to get it in advance, just get it if they ask to see one.

I just keep applying the Socratic method until they feel like an idiot.

"Where are you from?"

"England"

"Ok but originally?"

"... London?"

"But where are you parents from?"

"England"

"And your grandparents?"

"England"

"But you don't look English"

"Have you been to England?"

"No"

"Then how would you know?"

"Well... I guess I've seen on TV..."

"Like Downton Abbey?"

"Yes... well no I mean..."

If they don't care which country we're from, then maybe don't ask which country we're from?

Your employer can just continue paying to your UK bank account.