@timmz: Please try restarting your phone is Safe mode, as this will disable all third party apps and help to determine if the problem is stemming from an external source.
To enter Safe mode, press and hold the Power button until the 'Power off' prompt appears on the screen then release > Touch and hold Power off until the 'Safe mode' prompt appears then release > To confirm, tap Safe mode.
With Safe mode active, head to Settings > Connections > Wi-Fi, and attempt to toggle it on. If you find that it activates as expected, then please restart your phone as you would normally and uninstall any apps that you have added to the device since you first encountered the issue. It won't be possible to determine exactly which app is at fault, therefore I recommend approaching this via a process of elimination.
This is an unusual issue, @timmz, and I suspect that your last post is referring to a marketing email you have received (which, by its nature, will not have any relation to what you've posted here or any correspondence you've had with our Support Teams).
Please can you let us know how long you've been experiencing this issue of your phone disconnecting from Wi-Fi, and can you also advise which steps you've followed thus far?
