How to recharge a NJU phone number when you are abroad????

Hi guys i have a situation here, i got a NJU cell number and after i left Poland i still need to use it, any idea how to recharge it while you are abroad, i dont have bank acc there so needs to be something on line i suppose

If you have account in bank in Poland it's easy. If you don't then find someone (I hope you still have friends) who can make a transfer. You can download the invoice on and try wire the money. The customer support is friendly - they can have more ideas (or take credit card over the phone).