So after a week they refunded me $0.81 after some calculations

Pokerfest #45 - $500 Gtd NLH Heads Up Speed". We apologize for the inconvenience caused due to the cancellation of the tournament.

My money after they calculate with number of players = $ 250.00 USD/793 = $ 0.31 USD
My money after they calculate the number of chips = $ 250.00 USD * (6000/3072000) = $ 0.48 USD
Total refund = $ 0.81 USD