Have no idea if i am in the right forum but here goes with a warning to people.
This afternoon I took 200 pounds 10x20 in MINT CONDITION paper sterling notes to the Bangkok bank in Nong Khai Tesco Lotus branch to exchange them for Thai baht
They refused this transaction and I was informed that the policy of the Bangkok bank is to no longer accept sterling paper notes, only the new ones made out of polymer..
On further investigation the paper notes cease to be legal tender on the 30th September 2022.