I have just cashout from ATM machine (not in Poland) from one of the about 15x EUR currency card I had in the past year.
All 15x cards were used in the same way: loaded via bank wire (sometimes a single card could have been loaded even from more then one source) and cashout at ATM machine (or RARELY pay at restaurants/hotels/shops) none in Poland.
Perhaps do I have bought from lucky seller?  By the way I am going to cashout completely hopefully I am still in time