Boost a Connection not available after new modem activated

Hello,

I have seen other posts about this but following my XB8 getting swapped due to connectivity drops, Boost a Connection is not available in my Xfinity app. I have Xfinity Pro and gig service. I messaged support previously and they sent out a third XB8 assuring me this would fix it but the same issue persists after successful activation. I think it has something to do with the backend. How can I get this resolved?