Deleting bought worlds

I was minding my own business one day when I decided to play Minecraft. I busted out my switch and I saw the Minecraft movie server to earn a cape if you complete a quest. I hadn't logged in with my account so I did that, after I logged in with my account I changed my mind and wanted to play the star wars mash up I had recently got, but when I tried to, it said I didn’t own it. I had bought it and had made a few worlds with it. It doesn't let me play the mash up even though I bought it. I sad that my money was just thrown to waste. I would really like my mash up pack back.