I want to pay with PayPal, how do I do that?

Rover only takes credit cards, although it might take a debit card as well. You can see the instructions for making payment here:

https://support.rover.com/hc/en-us/ar...

and it says to enter the card number.

Another option to entering your credit card information online is to call Rover support and provide that to them over the phone if you prefer. ([Edit: Rover’s contact options have changed. Visit the Rover Help Center at https://support.rover.com/ to find the phone number, help articles, or chat with the team])