Anyone know how to take advantage of the 15 stays/25000 MR point promo if your company pays the hotel bill for you? ie the company is direct billed...

At one of the properties I stay at it appears that if you charge any incidentals to your room and pay for it with a Visa you're good to go. At another hotel the same scenario doesn't seem to work. Naturally, I'm stuck in the latter hotel for the next two months...

Thoughts or ways around this?