a good question, no idea. I got burnt on a multi day tix i bought discounted thru ticketmaster that was an organization's special price. Suggest contacting tickets at work and get it in writing that the tix would be upgradeable. If you do, come back & let us know what they advise.
Assume you are speaking of these tickets? FYI, taxes & fees bring the etickets up approx. + $21 pp.
Special Offer Value: $234.99 + tax $15.27 = $250.26
Info: Buy 2 Get 2 Days Free
Your Corporate Price: 189.99*
Universal Orlando: 4 Day Park to Park Ticket (Buy 2 Get 2 Days Free)
The 4 Day Park-to-Park Access gives you admission to BOTH Universal Studios AND Islands of Adventure. Ticket is valid for any four (4) calendar days during a fourteen (14) consecutive calendar day period which includes the first day any portion of the ticket is used.
This ticket also includes fourteen (14) consecutive calendar days of admission to the paid entertainment venues of Universal CityWalk which commences and includes the first day any portion of the ticket is used.