If you go to the Qatar Airways website and choose those departure dates and J, it does indeed say "from £2,060". If you then click to select flights you will see that unless you want a 35 hour flight duration each way arriving Tuesday afternoon (I don't), it is impossible to get that price. I, of course, haven't paid £3,800GBP, my client has. I'm only flying with this airline because my client baulked at the £5,400 BA wanted, oh and the tier points may ease the pain slightly.

Do you have any details of the airside hotel, as my searches have proved fruitless?