What I need to do with "You are not authorized to purchase on this device" pvz2?

@LaCosta2585 Hey, I had the same problem like 5-mins ago. All you need to do is - Head out to the google play store app, click your icon in the top-right corner,click on settings, authentication and turn it off. Also, if you have a device with fingerprint scanner, you may want to enable biometric authentication just so you don't buy anything on accident. Stay safe.