PayPal MasterCard is not a supported Card type for Wallet?

Description

I lost my card, so had paypal send me a new one. The letter that came with it said to go to paypal.com to activate it. The only place that allowed me to put in any card info was in Wallet, so I entered it there. (believe me, I searched on the page, and on the exact link they gave at paypal.com/us/paypalcashbackmastercard). The Wallet told me it is not a supported card type, but I got the card from paypal. When I click to see the supported types, the page is broken. There’s nowhere at all online to activate it, and I can’t link it to the wallet. I called in to activate it, but they said they can’t link it for me, it’ll be done automatically in a few days. Am I missing something? The letter clearly said that I could do this online, and I see no reason why I couldn’t, nor why the card type isn’t supported given that it’s their card, and I don’t see why the people on the phone also can’t do this for me.