Every single bank has a reversible policy if the transaction is due to fraud, otherwise you can just phish bank accounts and transfer away with zero consequences. Google debtor SEPA payments reverse, or read up on SEPA fraud.
I did just Google it, and its all about DIRECT DEBIT reversal! Do you understand the difference between debetor-initiated transfer an a direct-debit (creditor initiated)?
The "you can just phish bank accounts and transfer away with zero consequences" is complete bullshit - no single bank allows you to make a transfer without a one-time password sent to your mobile phone or hardware token.
If someone did phish your account, the bank will surely not reverse the transfer - think about it - everybody could make a transfer to another bank, pay for something, and the call the bank and claim they where "phished" and get the money back. No, they don't! It doesn't work! And I did read many stories of a similar thing on banking forums in Poland, because many banks allowed, and some still do, to make a transfer in the banks branch by handing a paper-filled form with the transfer and your signature - and people had money from their accounts stolen by having the signature forged and the bank teller not noticing it - and the bank did NOT reverse these transfers - not in a single case! They had to sue the bank, and in some cases the bank claimed - its not our problem - sue the teller if you want! If they could reverse the transfer, they would do it, and not go into such lengthy legal battles with the customer - but they can't, and if they lose the case, the bank would have to refund the customer from the banks own money.
If that polish company can manage to do it that's great, what bank are they using? Most banks will just dump you unless you start agreeing to paying SEPA fees
http://www.bzwbk.pl/But that bank actually charges fees for SEPA (both in/out) to everybody.
But no bank in Poland will actually mind about currency-exchange and lots of transfers. There are lots of currency-exchange private companies (PLN/EUR and etc) doing exchanges through bank accounts in all different banks in Poland. There is even a company
http://www.bluecash.pl which has accounts open in 23 polish banks, and provides a service that you transfer money with an internal bank transfer to their account in your bank, and they make a transfer from their account in the bank your recipient is - within 10 minutes - so your transfer arrives in 10 minutes, and not hours/next-day like with normal intra-bank transfer.
And none of these companies has documentation requirements ANYWHERE near the ones of MtGox - none of them requires to send anything on paper, just fill out your data on the web, and off you go! They just warn you that information about transactions above 15000 EUR can be forwarded to a government financial inspector, but nothing more is required to make such transactions.
And even more: two banks in Poland allow you to open accounts completely online, without sending them anything on paper, if you already have an account in some other bank in Poland and send them a transfer from that account - they consider data from the incoming transfer as sufficient identification. And I have an account in one of these banks, and my daily limit for online transfers is 1000000 PLN which is about 250000 EUR.