I finally received my delivery, but not everything is perfect about my Good Luck Care Bear.
First, the connections between the Bear's feet and the rest looks to be the thinnest point of the product. In my opinion they should be a little bit bigger. However, this is likely a Care Bear's manufacturer (Basic Fun)'s choice and definetely not The Forgotten Toy Shop's fault.
Second, I need to criticize Royal Mail's Polish delivery partner (Poczta Polska). For the customs-related stuff, they send the parcel to Przemyśl (waited there for almost a week for no reason), then sent it back to Warsaw and they send it again to Przemyśl into the same place. And finally when they delivered it into my city, the mailman didn't even rang a bell. It looks like he just left the notifications of all his parcels in the mailboxes (not only mine) and then he left the parcels in the post office at the end.
In my opinion you should consider using other delivery companies like FedEx, DPD or DHL for international deliveries. I never had such issues with them, even with customs-related stuff.