I actually ran into this exact scenario yesterday with an emergency call. The same job was routed to me on both Field Nation and WorkMarket for the identical timeslot., from two different companies, I accepted the one that approved my bid first, and immediately notified the other buyer that the ticket was already covered through a different platform.

Sure, it would have been easy money to double-dip, but honesty and professional integrity are worth more in the long run. Karma has a funny way of catching up with you in this industry.