Halloween mash-up pack and Grid Runners world not downloading in Marketplace

I bought/downloaded the Halloween mash-up pack and Grid Runners world a while ago. I’ve been able to play on both worlds. However, I deleted them and was planning to redownload them (to start the worlds again) and they won’t download on the Marketplace. Now, I can’t get either of the worlds back. Since I even bought one with money, I would like to be able to play them. All of my other worlds/texture packs that I’ve gotten off of the Marketplace still work. I am on an iPhone and connected to a stable internet. My Minecraft app is up-to-date. I can still access the skins from the Halloween mash-up, but the world doesn’t load/download in the Marketplace, so I can’t create the world and play it.