@Johnbhoy1957,
A long time ago I worked for the overseas branch of Lloyds Bank in Southampton.
What banks used to do was send the cheques to us, we would then send them to a foreign bank, with whom we had an account. They would credit our account and we credit the branch.
It was called collection, ask if there is a foreign clerk at the TSB, because it's their job.
They don't cash it, it takes about two weeks for the funds to clear depending on postage.
I'm with the TSB and they are crap.