So, help, the shop I've ordered my dress from has emailed to say they are...

So, help, the shop I've ordered my dress from has emailed to say they are closing. The have said they will honour all orders place. The problem is I deferred measurements as there was a long time til my wedding. The shop has my deposit of £500, and the dress has not even been ordered with the designer yet. Do I take the gamble and stick it out with the shop, or do I cut my losses and start again? And advice would be great thanks.