The host cancelled the accomodation the night before we arrived. Booking.com have a guarantee that they need to provide a matching or better alternative, but as the prices were much higher by this time, they couldn’t honour the accomodation. We ended up finding a downgrade that was £225 more expensive and booking.com agreed they would price match. However I had to pay upfront at the full price on the agreement they will refund the difference after my stay. Now after multiple calls where I’m told it has been raised, they are neither providing refund for my original booking nor refunding the difference on the second booking.