How to Cancel a MYIQ Subscription Before Automatic Billing

I started a test subscription with MYIQ on October 24. I was expecting it to be easy to cancel, but I have not been able to cancel it as of today despite trying. I request that my subscription associated with the email address s081010**@gmail.com be immediately cancelled and that no regular or future automatic payments be taken from my account. I also ask you to send me a clear confirmation that the subscription has been fully cancelled and that no further charges will occur.