Deluxe Digital Upgrade

Hi! 

I just bought the "Life & Death" EP and my sim just had the ""I want to throw the most bizarre costume party of all time!" [Digital Deluxe]" goal in her bucket list.

Problem is I don't have the Deluxe Digital Edition (I only have the limited edition) and I can't throw the party, so she can't fulfill the goal. I've been trying to find a way to upgrade to the Digital Deluxe on Mac, but I can't find one. It isn't available to purchase on the EA app.

Can you help me please? Thank you!