I purchased a campaign called keys from the goblin vault in march and it hasn't arrived yet. maybe its because we live in Canada but I'm  not sure what happened and we already paid for it so i would like to know what to do in terms of getting the campaign

weird thing about this is that in 2021 we bought the players handbook and we got it no problem. we checked the order and it is the right address, if anyone has had a similar problem or knows how to help, please feel free to help me out

Keys of the Golden Vault*

And you will need to contact Support (Contact Us link at bottom of any page). Also note that D&D Beyond did not do physical books in March so if your purchase was on this site, it was a digital book so nothing will "arrive" and you can access it from the Sources menu or go here: https://www.dndbeyond.com/sources/kftgv