Des
Hennie
If you have an account with 3 free units, then you should not delete them if you want to continue using them for free.
In this case, you can change units only through changing the settings.
If you delete a unit from that account, you will be able to monitor more than 1 unit in the future only with a paid subscription.
Please write to us at support@gps-trace.com with the login, unit ID, screenshot of device configuration (SMS commands and device’s answers) and link to this topic, then we will try to check additionally and help you.