If I only had a pound (that fine British currency) for every time Maastricht gave me traffic that wasn't separated, I'd be able to comfortably retire from ATC on the ensuing windfall.
We could comfortably afford to double that stake LTP and be quite sure of being wealthy. They do exactly the same to us in that nasty wee corner of sector 10/11 where they chuck us the traffic in your airspace without co-ordinating with either you or us ... and we have the minor matter of not having half of the traffic identified because it is on a squawk which converts to something already in NAS.