Don't go to Accordions of London - the owner is an arrogant rip-off merchant! Sold me an over priced accordion that wasn't suitable and then refused to give my money back a matter of HOURS after I got it home because he said it was second-hand. Before I'd handed over the cash he was prepared to courier me a box to try for a few days - does that make it second hand too?
He's a con-man.