What a bloody nightmare I have just completed manually deleting all 527 remaining pages of notifications. What made it worse is you can't delete the pages in reverse order, having deleted a page it displays the first page, so I couldn't start from the back and leave say 100 pages, they all had to go.
It took considerably more than just 2 clicks when I started it was 3 clicks and moving the mouse twice for each deletion as the select all box and the unsubscribe weren't in the same screen area so you have to scroll down or click in the scroll bar margin and then move to the unsubscribe button.
I had an idea reduce the text size so both objects were in the same screen, so down to click move click. Hundreds of pages later I had another idea, try select all and click enter in the hopr that the unsubscribe button was the active button, it was. The next couple of hundred pages of notifications were don in a little over 12 minutes.
What a bloody nightmare, now lets see if all this effort has any effect.