We are currently here on a 6 night point stay. We are Diamond but we know comp upgrades are limited so when Hilton asked if we wanted a paid upgrade to an OWB we accepted, only to then get a notice that that was pending availability. When we got here the hotel was sold out so we got it- no upgrades, comp or paid. We asked that they upgrade us when space became available later in the week, at the time Thursday and Friday were showing tons of availability. Today we asked again about a comp or paid upgrade to an OWB, as there is still availability showing. We were told no. I understand that the OWB are more than one level above the standard redemption rooms, but I’ve never been denied a paid upgrade when there is space available. Has this happened to anyone else? Any suggestions or work arounds? Can the Hilton Diamond line help? Thanks.