PayPal shared more insights to the User Agreement on Friday: https://stories.paypal-corp.com/home/an-update-on-how-we-contact-you

"Our contacts with you are intended to benefit our relationship. For example, we may contact you as part of our fraud prevention efforts to keep your PayPal accounts safer and more secure. In reaching out to you for account service purposes, such as fraud alerts, we occasionally use technologies that allow us to contact you efficiently. To use this approach we seek your permission through our User Agreement. You can choose not to receive autodialed or prerecorded message calls by clicking here and contacting customer support."