Are you using what is labelled Serial Number specific for Premiere Elements 12 or are you trying to enter some sort of product code. The Serial Number format is
Some get confused with Redemption Codes.
If you do have to contact Adobe Chat, please let us know the outcome and how the session went. All week the Adobe Chat link has been down
for most of the Adobe Chat opportunities. Some sore of updating of queue management I was told. How long that situation will exist is not
known at this time.