Hi Heathside,
Thank you for that information, those are usually created by the web browser
1
Open the Settings App, then go to System - Notifications and Actions
Temporarily turn off notifications from the Edge app and wait to see if the notifications have stopped.
2
If the Notifications have stopped, re-enable Edge Notifications if you wish
Then open Edge and click the 3 dots at the top right to open Edge Settings.
In the search box in Edge Settings, type notification
On the right scroll down to find the notifications settings. open that
You should see a list of websites allowed to produce notifications, remove any website you do not want producing notifications and ensure 'Ask First' is set for websites to produce notifications, so they are not automatically added to the list.