My real estate agent gambles pool money

[Walter Correia]

I got into a fantasy football pool with my real estate agent and he self appointed himself as the treasurer and held $480 to pay out the winner. I won the championship and he now owes me $280 and has not paid me in two weeks and continues to push back. The crazy thing about this is that he is representing me on a deal right now that we are closing in the next two weeks. There obviously a huge trust issue with this guy and i don't understand how a professional can do something like this. How should i handle this situation? How would you handle this situation?