@Simon88874: The passwords won't be visible in Settings > Connections > Wi-Fi once they have been entered, I'm afraid. If you're able to automatically connect to the Wi-Fi on your A12, why not use it as a hotspot to connect your laptop by heading to Settings > Connections > Mobile hotspot and tethering > Mobile hotspot > On > Make a note of the 'Network name'. Now, on your laptop, select the hotspot from the list of available connections, and you can use this as a workaround until your landlady returns. I hope this helps.
@Simon88874: When you enable the hotspot on your A12, the password should be visible towards the top of the screen, below the network name. For more information, please take a look at the 'How to configure a Mobile Hotspot' section via the link below.