Something not working, or an idea for the game? Write to legit.software.solutions@gmail.com and tell us your device, your iOS or Android version and what happened. We usually reply within a few days.
Open the game, tap Shop, then Settings, and tap Restore purchases (it is also on the unlock screen). Use the same Apple ID or Google account that bought it. If it still does not unlock, email us with the date of the purchase and your receipt.
Purchases are handled by Apple and Google, so refunds are too: Apple customers go to reportaproblem.apple.com; Google Play customers use the order history in the Play Store.
Open Shop → Settings. Unstuck player moves you to open floor. Shuffle albums picks up every loose album and drops it again around the store (your finished shelves stay finished).
Each has a switch in Shop → Settings. Game audio follows your phone's silent switch, and the music stays off while another app is playing audio.
Your progress is saved on your device. It is not tied to an account, so deleting the app deletes it.