@OneFrenchEgg I'm notorious for knee jerk reactions so for once in my life wanted to 'mull it over'
We literally only decided the other day to organise a vow renewal. I am not a showy/big fuss kind of person but my daughters want us to do it and due to health implications it might be nice. I'm unlikely to celebrate any more 'big' birthdays so a big anny and celebrating lovely DH seemed like a nice thing to do.
It wouldn't be until much later in the year but was taking a stroll through the Monsoon sale and noticed it.
I don't want anything big/lacey/brides but seeing as I was so incredibly disappointed by me dress at our wedding, I thought something like this would be nice rather than rocking up in my usual jammies and slippers combo 
I never for one second considered that brand new stock would sell out that quickly. I have no clue how many stock items they order/hold but didn't think it would be a sell out so soon after Christmas.
Completely my own fault and thought by the power of Mumnset we might find a solution.
Everyone has been incredibly kind with all their help and suggestions.