Just discovered that SBO has gone down that dreadful Pinnacle path and introduced a non-industry standard turnover requirement.
Apparently this was introduced in December 2014 and just as Pinnacle did, SBO also failed to notify customers.
I only discovered it today when I requested a withdrawal. At least they did waive it on this occasion but I'd not have made the withdrawal at all had I known in advance.
And just as I vowed with Pinnacle, I'll not be making any more deposits until this abomination is removed.