Hacker Underground Base

I recently bought the Minecraft dlc in-game Hacker Underground Base by BBB Studios, and the interaction time is delayed something badly. I would like to have my minecoins credited back to my Minecraft account, and or for the bug to be fixed. I will uninstall the Hacker Underground Base content. Please be sure to inform BBB Studios of this bug. I thought it would be worth to buy it, but unfortunately I was terribly wrong. Please credit my account back with the 660 minecoins I spent. Thank you in advance!