Some five or six month ago I bought 8MB+IDE extension in this thread. It never arrived. We waited approx two months, and then Kipper2k returned the money I paid, even though I never asked, since it was unregistered parcel.
Since it was fifth or so lost pacel to Poland, he informed in the thread that he stopped sending stuff to PL.
Now the majick happens - I have just received the package. There's one curious extra stamp on it: "missent to Jamaica"

.
It turns out it wasn't Polish post office that was responsible for all the lost parcels.
I believe someone in Canadian post office, for whatever reason, decided to route parcels to Poland to Jamaica

. Why? Beats me.
All in all - I've received the board and of course I'll be re-paying the money I owe kipper2k for the thing. I wouldn't be surprised if more of these "lost" parcels arrive to PL and kipper2k is paid for his good stuff by these receiving them.
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Money re-paid. Thanks again for the trade. Leaving feedback in a minute.