A little hard to parse out this article from The Daily Express, but here 'tis. The UOOGB, aka the Original One, tried to keep the knock-off TUKUO from performing in the UK, claiming that the latter's name might confuse consumers and thus infringes on their trademark.
They failed to get the injunction, but it seems that the trademark issue is yet to be settled. A court date is forthcoming.
Maybe the knock-offs should change their name to the First United Kingdom Ukulele Orchestra. Think about it.