I am a new Diamond member. I asked to apply a DSU to a reservation a few weeks ago, but the number of DSUs available to me in my account did not decrease. Is this to be expected? Does the number decrease only after stay is completed? More details: I called and asked to apply a DSU to a reservation as I made some modifications to it a few weeks ago. The agent said she would "put in the request" to the hotel. My reservation now shows up modified correctly (I had to reduce length of stay) and as if my party is now in two sea partake King rooms though only being charged for one. I think that might mean I am reserved for a suite or at least connecting rooms except that my number of DSUs in my account is still the same, as if I have not used one. is that how it should appear? Thank you!