Orangetheory Complaint

I paid for 2 months of unlimited classes beginning on April 24th 2019 and set to expire and charge me $169 on June 24th 2019. I cancelled the membership on May 15th 2019. They charged me $169 on May 24th 2019 claiming that When you put in a 30 day notice you still get charged 30days. But I had paid for two months in advance so they essentially are double charging me.