Someone has got to teach this kid a lesson in Business and law ….

(TMZ reports) Keef was sued by a  concert promotion company called Team Major back in March … which claimed Keef  screwed ’em over by bailing on a London gig — set to go down Dec. 29th 2012.

Promoters TM claimed Keef’s stunt cost them OVER $75,000, including his advance.

Now the lesson part: according to docs, Chief NEVER bothered to respond  to TM’s suit. After FOUR months of silence a judge ruled in favor of Promotional Team  Major … simply by default.

Then the judge stuck it to Keef … ordering him to cough  up $230,019 for damages, loss of earnings, and reputational  harm.