I booked this hotel through expedia and paid the f...

I booked this hotel through expedia and paid the full amount. Unfortunately, I booked the Heathrow Airport location rather than the Gatwick Airport Location. I contacted Expedia and they informed me that although the cancellation policy indicated the hotel charge was non-refundable that they have never had a hotel refuse to waive the cancellation fee (the entire hotel stay). Two representatives from Expedia contacted the hotel and informed them of my mistake and even requested if I could transfer the booking to their Gatwick airport location. Sofitel London Heathrow refused to transfer the reservation or refund my money. Both representatives from Expedia were shocked and indicated they have never had this happen before.