How do I enable / disable AutoPay?
After you've logged in, click on your username on the top right to go to your account.
Now, on the left menu, click on "Rented" under "Referrals". This will take you to your rented referral's list.
All you have to do now is click on "Enabled" or "Disabled" option next to AutoPay (shown on the top of the listing) to toggle its status.