The decision from the BBB dispute with TEFL International came in on May 19, 2009.

The official decision of the BBB:
"The consumer's request for a refund is denied. The business does not have any obligation to provide credit to the consumer for the deposit."

However, TEFL International (BV) contacted me after the decision and still offered me the opportunity to apply the $500 deposit towards a future class. Since they were under no obligation to do so after the BBBs decision, I do appreciate them honoring the original offer.