This has now been resolved.
Think Nigel can give an update on the current status.
It appears to stem behind a TCS registration and the same email address being used for the V2 user account and the TCS account not being approved.
Unfortunately TCS account are not being allocated to end users and looks like Texecom are doing checks in this regard.
If you have registered for a TCS account and are not an installer and the account is left in limbo (unapproved or declined), it will need to be deleted by Texecom in order for you to use the same email address on the V2 app without issue, or indeed the V2 beta app.
Believe the OP is using V1 now without the TCS account interference issue.
V2 is in beta and is not recommended for a working alarm system, ie should be bench testing only rather then for your home security at least until the official launch.
Think Nigel can give an update on the current status.
It appears to stem behind a TCS registration and the same email address being used for the V2 user account and the TCS account not being approved.
Unfortunately TCS account are not being allocated to end users and looks like Texecom are doing checks in this regard.
If you have registered for a TCS account and are not an installer and the account is left in limbo (unapproved or declined), it will need to be deleted by Texecom in order for you to use the same email address on the V2 app without issue, or indeed the V2 beta app.
Believe the OP is using V1 now without the TCS account interference issue.
V2 is in beta and is not recommended for a working alarm system, ie should be bench testing only rather then for your home security at least until the official launch.