Bonny Bubbles review for Mst: Preorder + Back in stock

I initially liked the app, however the functionality on the back end for me was not working properly and that's where I got lack of service. App was installed and I needed some help as it wasn't functioning in the restock date area. I sent a message for help on this and no reply back. So I uninstalled the app and it's still remains. Why is it still there?