I will try and answer the question "Why weren't Spelbound on tonights BGT final show..."
They were asked to perform on BGT Final and they date was held in the diary and Spelbound agreed to perform and had a new routine ready but to their disappointment were told a week before that for BGT logistical reasons (not Spelbound's logistics) it couldn't happen.
Spelbound continue to perform across the world, and on TV. Most recently in May on Keith Lemon's new ITV Show "Lemonaid" where they performed with Mark Wright and Keith Lemon.
The routine they would have performed on BGT is still unbroadcast and given it's Olympic theme we would like to debut it this summer on TV - so any talent bookers who read this please get in touch with MIG management.
http://bgtmig.blogspot.co.uk/2012/05/spelbound-had-honour-of-performing-for.html
Last Week Spelbound performed for the Sainsbury's School Games at the Olympic Basket Ball arena, were hosted at Downing Street, and then performed for Prince William and Duchess of Cambridge at the Royal Albert Hall for the Olympic Team GB event "our greatest team rises".
Spelbound have retained their world, european and British champion status in acrobatic gymnastics and are getting paid gigs twice a week to subsidise their training as they are not currently sponsored as their sport is not an Olympic Sport as yet.