Hey there LJQuadras,
Thanks for reaching out to the Apple Support Communities. If having issues with adding a card to the Wallet app, check out the information provided in the following resource that can help with this specific issue: If you can't add a card to Apple Wallet to use with Apple Pay - Apple Support
If still running into issue after going through the steps above, we'd recommend reaching out to Apple Support directly from this link here: Get Support - Apple
From that link select Choose a product > Apple Pay > Add debit or credit card to Wallet. From there select Continue, and you should see a few options to reach out, depending on your location.
Cheers!