You'll need to go to your Account Settings to cancel your membership and stop billing Cancel Wealthy Affiliate Membership and Stop Billing As Wealthy Affiliate gave you a free trial I don't think there's an option for a refund. You could try sending a private message to Kyle or Carson.

You go up to you account page and scroll down to membership. You will see a tab for canceling your membership. You will be reimbursed on a prorated basis. Sorry to hear that you are leaving.