I just brought back a dress to the shop "Little Black Dress" in the Powerscourt Centre and got a voucher in return (they don´t do cash refunds unfortunately).
It´s worth €295, but I´m very happy to sell this for €250 if anyone is interested? The voucher doesn´t have an expiry date on is (I asked).
This shop is very popular with Debs girls and they do various different brands there: Gino Cerruti (http://www.ginocerruti.com/), Alfred Angelo (http://www.alfredangelounitedkingdom.com), Jora (http://www.joracollections.net) etc.