Chess.com — cancel membership

I am trying to cancel my membership on chess.com and it doesn't let me it just leads to a page that says how to cancel the membership that leads to a page that says click here to cancel, that then leads to the same page that sends you to the other page in an e endless loop.
I can't find their phone number anywhere in the website.
Today is the 7th day, the 7th free day, October 6th, 2018. We signed up for the membership on September 29th, 2018.