Okay so I'm on an IOS and I'm not able to download a world from Marketplace. I head back to check on it and it says "Purchase in Progress." It's been stating that for a few days now!

I'm currently using an iOS and was previously downloading a map from Marketplace. I completed my purchase and my screen told me that the purchase was "in progress" so I thought that everything was fine. A few days went by like that and it remained the same and I have no clue what to do.