For a while it seemed that the notifications you get on selling an item stopped working.

But yesterday I got 3 notifications telling me I had successful sales of 0 euro, with their cut and my cut also being 0.

When I logged on I saw that 3 of my auctions had timed out (as in the 36 hours were over), but for some reason each of them generated an automatic reply.

My notifications have worked since about late feb, had 1 last night without the issues you mention..

I've had a few odd things happen and raised support tickets and had them resolved quickly, might be worth a shot if it keeps happening.