Hotel in BKK

[Jellybean]

The Bangkok Banyan Tree Hotel cost £401 for the 3 nights (Thursday to Sunday, Feb 2019) with Booking.com

As to where I stay, D Varee Diva Bally Silom, which charges £123 for the 3 nights on same dates . . .

Lickstamp!

[Blacktouch]

Another hotel recommendation is Wall Street Inn Hotel On Thanon Surawong. Opersite some of the bar action.

Prices start from £23 to £26 per night. I believe it's a 2 or 3 star hotel.

Friends have stayed there before, and you can bring joiners back with no problems or extra charge.