I've given up on Wiggle.
The site has more and more bells and whistles that do nothing to enhance the buying experience - for example how about allowing user reviews.
The service has been equally rubbish - a recent order thay managed to deliver 5 of 7 items though it took them a week to tell me. I cancelled it, but they sent them to me anyway so I now have more threaded cartridges than a soda factory and of course to send them back would just be more hassle for me.