1. Log in with your user at my.bikersos.com/checkout.
2. Click on the Premium Status view and press MIGRATE there.
3. Now cancel your subscription as follows:
a. Cancel your Google Play Store subscription
Go to the Google Play Store.
Tap the menu icon and go to Account > Subscriptions.
Search for the BikerSOS subscription.
b. Cancel your App Store subscription
Go to Settings > [Your Name] > iTunes & App Store.
Tap your Apple ID at the top of the screen.
Tap Show Apple ID. You may need to sign in or use Touch ID.
Tap the BikerSOS subscription.
Tap Cancel Subscription.
4. Now complete the BikerSOS subscription in the checkout. (Voucher will be added automatically for the time already paid)
5. DONE! 👍 Now activate your tracker as described in the instructions.
Here you will also find the instructions again: https://bikersos.com/pd/gps-tracker/quick-start-guide