My quiry not being attended

I have ordered a dress on SPREE on the 24 November 2017 and paid for the dress same day. The following day I received an email from SPREE saying that the dress is out of stock and I requested for a refund as I was disappointed on their treatment on my order.i even took an initiative to call them to remind them of my refund and they keep on promising to send it within 24hours. Today it's the 7th of December and I have not heard anything from SPREE. I am very sad because I explained to them that I needed to use my money and it's been over two weeks now waiting from them to refund me?????????