If I purchase a new phone, will I lose my Stamps and Rewards?
No, your Stamps will remain.
Just download the Stamp Me app onto the new phone through the App store.
Once downloaded, login with the same email and password that you previously used on your old phone.
Note: If you have forgotten your password, just press Forgot Password and new one will be emailed to you.
You will find all your Stamps and Rewards have been preserved.