With the new Neviweb platform unveiled on August 20, 2019, it is no longer possible to assign a device to several accounts for security reasons.
This measure also helps to avoid inconvenience when moving.
That said, before migrating to the new app, some users had devices on more than one account. For these people, we maintained the possibility of doing so because it is an acquired right. However, if the user with this earned right creates a new account to which he adds a device that belongs to other accounts, all the other accounts will automatically lose the device. The user will have lost the right.