Changing my address for a new IBAN

Hi, I’ve opened my revolut account in the UK so my IBAN starts with GB, at the moment I’m in Greece for the summer and I’m making money (cash) at my work from tips and I want to put the money on my revolut account but when I go to these shops in Greece like western union they say to me that because I have a GB IBAN they can’t transfer the money there.

One of my friends has a LT IBAN and I think that’s because she has a Greek(European) address so now my plan is to close this UK Revolut account and open a new one with an address from Romania because I have a Romanian ID, would that work? Would I get a LT IBAN? Are they gonna ask me for more proofs about my address in Romania even if I’m in Greece until the end of the season? Thank you!