Deleting and Adding A Different Device for Trial


I originally had a WP8548 registered on Air Vantage with everything working great. But, we are going to use an HL7748 for our product, so I was trying to register this device on Air Vantage instead of the WP8548. I think I managed to delete the WP chip, but I cannot figure out how to add my HL7748. When I originally opened my AV account, I registered my WP8548 as part of the account creation. This is just a trial account, so perhaps I might need someone to go in and manually change this for me? I just need to be able to register my HL device now and see if I can communicate with it and update the firmware.