When a purchase is made for Purple Serve via PayPal, at the point where you are asked to confirm your purchase, you are informed that a recurring payment for your selected product/s will be enabled. In order to complete your purchase, you must agree to this before you can pay.
If you are unsure what services you have purchased using PayPal, you can check if autorenewal is set up on your Paypal subscription for your Purple Serve domain names and/or services by logging in to your PayPal account.