Spent the 115,000 VirginRed points for a 5 night on Resilant 5/2 and received the Access Key email 5/4. Promply booked a cruise for July in a Central Sea Terrace. On 5/5 I was able to request upgrades on Gorgeous, Brilliant, 3 types of Cheeky, Seriously, and 3 types of Aft as well as XL. I bid on everything but the XL. The mimimum bids ranged from $580 to $2275. There are a lot of suites still for sale for my cruise including Mega's I wasn't able to bid on. This leads me to believe undersold cruises start with much lower minimum upgrade bids and/or they consider Access Key from VirginRed a full fare.