I can't recall the times back when but they seem to be extremely well booked over the summer and I can imagine they could even do more. I feel they haven't been known as a touring act at all and them building a name for themselves in the way they do now is perfect. Bookers will notice that there's is a band playing sets overloaded with hits and a high crowd satisfaction. So just with that and it leading to more bookings hey should be able to earn some good coin.
Also what a smart move playing Milk and most likely having the good press and the word of mouth to easily sell tickets for two headline shows a bit later
According to Setlist the last 2 years are shaping up to be Sugababes most active ever as a live act (I think only Change eta was busier with their longer theatre tour after the Overloaded arenas).
No sharing with labels/Crown either!
It’s definitely been interesting to see an act that was dismissed for being a ‘girl/pop band’ getting their Flowers as legit talent now.