Has not refunded my money per contract

On 3/14/2018 I paid mobe $497 for their upcoming seminar. There was a clear 3 day right of recision of the agreement. I formally applied for a full refund on 3/15/2018. I have contacted them numerous times. As of 3/27/2018 they have not refunded my funds nor given me a date as to when it will be refunded.