Virgin Active driving me nuts.

I recently cancelled my contract with Virgin Active to move to another facility. After receiving a confirmation of cancellation letter, and trying to switch my Vitality to the other facility, it turns out that my contract has indeed not been cancelled. After contacting Virgin, I was assured that it had been cancelled on the 3rd of April 2019 as stated in the letter. Strange enough my Vitality benefits have not been running as according to Discovery I am still at Virgin Active. If they think I'll come back to Virgin at this point they have absolutely lost the plot. This matter has gone under investigation with Discovery's partnership team.