I will be staying at BVC in Oct. on rented points. I would like to buy advance UPH. Where do I call to get them, CRO or MS since that is where the reservation is made through.
You cannot purchase the UPH in advance when staying on DVC points. Advance purchase UPH is normally handled through CRO and is tied directly to your resort reservation. CRO does not have access to DVC reservations and DVC itself is not equipped to handle these park pass purchases.
The only option is to purchase at the resort front desk.