Can anybody help find a LNF rate for the following:

The Ritz-Carlton Abu Dhabi, Grand Canal
Check in: 9 September 2016
Check out: 17 September 2016
(8 nights)

Bed and Breakfast.

Currently £215/night on Marriott's website.

I have found it for £101-£103/night from comparison sites but Marriott have declined the LNF rate as "reservations are not confirmed to guests at the time of the initial transaction" for the matching site.

Trying to find a site offering similar prices that matches all of Marriott's LNF requirements.

Any help would be appreciated.

Thanks!