Why is everyone unaware of my recent credit card?

I had a nonexistent, then bad, credit score because of no credit, so a couple of a years ago I got a secured card, and since then I’ve gradually worked my way up to four credit cards and a slightly ‘GOOD’ credit score.

But my most recent card, which I activated more than a month ago, doesn’t show up in my available credit / credit limit or my number of open accounts. Neither Experian nor CapitalOne CreditWise seems to be aware of it.

Also, I keep getting emails from my new card telling me to start using it. But I’ve been using it regularly for more than a month. I called the new card and they said they don’t see the emails I’m getting and they’re not sure why I’m getting them.

Does anyone have any insight or suggestions? Thanks!