Hi PeterHaber.
Welcome to the Community, though I am sorry that you are having problems.
I would like to help but I am having trouble working out exactly what the problem is at the moment. So it would probably help if you were able to provide some more information.
First your reference to Norton 360. This is currently entirely separate from Norton Mobile Security (NMS) unless you have purchase one of the new Norton One licenses.
I do not know why NMS locked you out but that no longer seems relevant as you (or your partner) managed to unlock it. What does seem relevant is that your license seems to have mysteriously expired and that it has locked you out again.
I cannot understand how it has locked you out again. If you uninstalled and then reinstalled as NMS Lite, this implies that you would have had to set up the Anti-Theft part of NMS again and that you should have remembered your password. Was this the case? Are you merely recording that it locked you out until you unlocked it with your password? If this is the case then I am wondering if your SIM card has come loose and that a poor connection (possibly if it is knocked) is causing NMS to lock.
As for the license expiring I do not know why this happened but I would suggest that the best thing to do is to contact Norton directly through the Norton Chat link. This if free. Tell them what has happened and give them the details of when and how you purchased NMS and they should be able to get your license back fairly quickly. Once the link opens scroll down to the "Chat Now" button, click on that and follow through. They are normally quick, and helpful. Let us know what happens.
Better luck for the future. ;-)
