First! You will want to download the app and log in using the original credentials you used.

After you log in you will click Get Started on the vehicle profile and enter the IMEI from the back of your Bouncie. You can use this link https://my.bouncie.com/reactivate to reactivate your account.

If you are going to use it in a new vehicle then you'll want to add the vehicle to the app first then it will ask you to enter the IMEI.