Sorry for going off-topic

Sort of urgently need to book a hotel for an extended trip to Hanoi and the OTA our company contracts with doesn't support bookings longer than 30 nights.
I've got a 35 night stay coming up which I'm hoping to leverage for ALL status. I could've sworn there used to be a specialized portal for "apartments/villa" on the ALL websites that handled stays longer than 30 nights, but I can't for the life of me find it right now.

Is it easier to resort to contacting the hotel directly for reservations and stays?