Hiya @Piotr15 - sorry about the currency issue. I wanted to check in on some things with you so I can get you the right info.
It looks like you applied for and received approval for an education subscription today. Is that correct? If so, do you still need assistance regarding the currency rejection? If not, you should be good to go.
I believe that Poland uses the Zloty as the official currency. If your bank is located in Poland, it likely exchanges in that currency, and we do not currently support it at this time. If you attempt to pay for a subscription using that bank’s info, you will see the message you posted in your original message.