Amex Corporate Card Benefit - Can’t manually add credit anymore

I recently got the Amex plat and I wanted to call support and have them enroll my Plat card so I would get the $150 annual credit.

They said they stopped manually enrolling users in August. They said the only way to get the annual credit was to apply using the link on the Amex corporate website.

I was able to manually add my gold card into the program last year so they said I would continue getting the $100 Amex gold credit but I can’t enroll for the plat card.

This is a bummer since I thought I was going to be able to get the credit for both cards.

Has anyone recently tried to do this and had their card manually added?

I was thinking about calling again to see if another representative would be able to help me.