Using CitiShop with Brave

How do I ALLOW the CitiShop extension to work in Brave? I always get a popup with the following message on any website I click to:

Access issue detected

We’re unable to deliver your Citi Shop℠ offer due to factors
like ad blockers, firewalls, VPNs or network filtering settings.

Please visit our FAQs for troubleshooting tips or try again
later from a different internet connection.

I am using Sequoia 15.3.2 using Brave 1.76.74