That is mystifying, but true. I bought a £1500 tv from a local dealer and after asking loadsa questions, took out the extended warranty. Sure enough, I got the premium back at the end of term.My parents bought some appliance or other and paid for the insurance. I told them it was a waste of money and my dad said "Oh, we get the whole premium back if we don't claim". I pointed out that this was impossible, but they were right, they got it all back a couple of years later, I saw the cheque.
I still don't know how that works.
Richer Sounds do the same and I'm counting down the days on a surround system and OLED tv.
It must work on the interest, bugger all these days.