Had the same problem - I was stuck with my EUR on MT GOX for several weeks.
Support wrote: "They have problems with withdrawel limits on their polish bank account - it can take some more time".
My tip:
- Request a cancel of your withdraw with MT GOX (they do it asap)
- Buy Bitcoins
- Send them to an alternative exchange which deals in EUR (e.g. bitstamp, or bitcoin.de)
- Get your payout there
I know this sucks, because you have to pay fees again and there is a risk of price drop. But otherwhise it may happen that it takes another couple of weeks till you have you money.