Thanks xHi @annielou, maybe worth doing a test yourself, I used to regularly test the careline to see if it was working properly (they encouraged it). It could be that Mum is mistaken (e.g. remembering a previous night) or it could be that Mum is opening the doors to re-lock them (if that makes sense?). It could be that she has progressed to trying to get 'home' - its difficult to know as Mum's testimony is likely to be unreliable. I have seen others on the forum have had cameras installed - perhaps that could be an idea and you will be able to see what is happening.
I've emailed to see if they can tell me when it has gone off. I don't know if they'll be able to, but if so at least I can see if mum is setting it off or just remembering a time that she did. Last wednesday though to thursday (when they came out to reset it) it went off a lot because she'd unplugged it the night before and it had mucked up its timings so was on during the day too, so she could be remembering hearing it then. I hope that's all it is but I'm quite worried it's not.
Yes that's whats she's does, unlocks the door to check if she's locked it, its what she used to do before. Also she used to think she'd lost her keys and that must have been outside so she would use the keys to unlock the door to go outside and look for them. Checking the doors and worrying they weren't locked is what she used to do before for hours on a night and even after gone to bed some nights she would wake up, get up and check again and again and eventually get in such a state she would ring me upset and ask me to go over as she didn't know what she was doing. That's when I ended up staying there to keep an eye on her as she was scared to be alone. While I was there she would take ages to go to bed rechecking the doors but I could stop her from unlocking them and tell her they were locked so she didn't need to get back up to check again.
I don't really know anything about cameras but Mum doesn't have the internet at her house, I assume she'd need it so we could see the camera. She wouldn't want internet putting in, but it would be good to see if she was actually opening the doors.
She has been convinced again today that she hasn't lived there long and has another house. Worried she isn't getting her pension because they don't know her address, she needs to go to post office as she doesn't get post there (this was said with a letter in her hand that had just arrived through the post) worrying that she cant go to day centre tomorrow because they picked her up at old house last week and won't know where she is now. I've spent quite a bit of today reassuring her about these things, which has settled her for a bit but she would keep going back to them. She's going to ask Our Andie (me) about them when she sees her cos she'll know.