Got an update on the fuel band. I started having a few issues with synch to start with then mem full error. On plugging in I had an 802 error, which after trying the recommended steps still had no luck. I reached out on twitter and Nike got back to me with customer service details.
Will update once I have some information.
update Given this post is getting a lot hits I wanted to summarise. So I sent it off to Nike Europe under warranty to start with. They sent labels and picked up via UPS.
It took around 2 weeks and I had a new one in the post with original packaging.