I have received a message about tamper/sabotage. What should I do?

This means that the alarm is not properly attached to its mounting bracket. There is a small sensor on the back which is designed to detect tampering. You can fix this by rotating the detector counter-clockwise to loosen it, and then fitting it properly again. Check that all the attachment points are in the bracket. When the alarm is attached properly, you should receive an SMS confirming this.