Wow, really? I had no idea one can do such a thing.
Żabka does it - zabka.pl/wygodne-uslugi/wyplacaj-gotowke
You have to buy something (but it can be the cheapest thing in the shop), and with Visa, you can take up to 300zł. Mastercard - 500zł.
It's very useful when you need small amounts for something, like 10zł for a ticket machine. What's also nice is that it's charged as a purchase, not as a cash withdrawal.