Why has Volvo pulled out after winning Channel 4’s £1m diversity competition?

Volvo has decided to pull out of Channel 4’s Diversity in Marketing Award and pass up on £1m in free airtime, claiming Grey’s entry for the competition had not been “approved”.
The car marque was crowned the winner in July for its pitch around non-visible disability. The idea had been submitted by its creative agency Grey London.
However, Volvo now says the agency “submitted an entry to the Channel 4 competition that had not previously been shared with us, nor