Minecraft for Windows Marketplace Issue

I bought several worlds with minecoins in the Minecraft for Windows marketplace. I have been unable to get the downloads to complete. I seem unable to cancel or restart any downloads. Is there no way to view all outstanding downloads?

 

The minecoins were removed from my account (Sk8HunterB), but I haven't been able to download any of the worlds.

 

Please reset the downloads and restore the minecoins in my account.