So last month I started DM'ing a game using the Starter Set Mines adventure, we were playing over Discord and are using Roll20 as the tabletop using the Mines of Phandelver adventure. With the Play At Home promotion the adventure was supposed to have a time limit of availability for free. Because of the way it was set up in the marketplace, I wasn't able to purchase the adventure to ensure I'd still have access to the content. I see now the adventure is pay only now, but I still have access to all the content in the campaign. Do I still have a time limit until I can't use that content in my campaign while it is active, or does the campaign have access to that content until I delete the content or the whole campaign? (I assume I now can't make a new campaign using the Mines adventure content unless I purchase.)