Don't see the PayPal buttons (Pay Now, Buy Now, etc)?
Try refreshing or re-loading the page.
Check your browser settings. Specifically, third-party cookies need to be allowed for the PayPal buttons to appear. Follow this guide for more details. If you don't want to allow third-party cookies for all sites, you can allow them just for the following domains:
Visit the page from a different device (PC, tablet, smartphone).