Email support@tipitrip.com. We answer within two working days.
Credits are tied to an identifier the app creates on install. Open the paywall and tap Restore purchases; your paid balance moves to the new install.
Purchases are made through Apple or Google, so refunds go through them: reportaproblem.apple.com for the App Store, or Google Play's order history for Android. Refunded packs are removed from your balance.
Plans use live Google Maps data, but places change. Ask the plan to swap the stop, and tell us the destination and date so we can look into it.
Uninstalling removes everything on the phone. To erase the balance and purchase records on our side as well, email us from the app's Support screen so the message includes your device identifier.