I got a reply pretty quickly from support:
"We would like to confirm that you can both play on our site; however, verification documents will be required to prove that you are two different individuals.
As long as you're here to have a good time and that we don't see any suspicious gameplay between you and your wife, you're certainly more than welcome to play on our tables.
Also, since you will be using the same IP, you cannot play on the same table and in the same tournament. The system will be triggered and one of you will be removed from the game automatically.
For more information, you can visit this link:
https://globalpoker.com/card-room-rules "