Mermaids Life by Everbloom Games stuck in Dowloading on Amazon Fire Tablet

Hi, I'm new to this community, and speaking on behalf of my 11 year old daughter who used her money to purchase this game, Mermaids Life, on her Amazon Fire Tablet.  She wanted to be a mermaid but instead she is getting the "Downloading" icon, which has been showing with zero progress for a while now.  She tried restarting Minecraft.  She tried rebooting.   Please let me know what I can do to help get this resolved, or get refunded for the purchase.