Anyway Geordie here but raised a Fifer too. So naturally they are rolls. All other answers are wrong. Confused the hell out of my Mum when we first moved up, and resulted in many an accidently bought iced bun.
What confuses me about most non-bun areas is that it's not just a different word, it's a collection of words and which one is correct seems to change based on size and consistency and even contents of said bun.
Are they always rolls, where you are now, or are they subject to a similarly complex system as elsewhere?
I'm in Edinburgh, and they are almost exclusively rolls, or morning rolls. Sometimes baps. Not sure that isn't just for the giggles. Never buns. A bun is sweet. But since this is a country that calls sugary fizzy drinks in cans "juice", I don't think we can take the high ground here.