Can't get an internet plan because of trouble verifying identity.

I have been stuck on this page where I have to put my birthday to verify my identity. Every time I put my birthday the website says it couldn't verify it, and gives me this message "We're having trouble verifying your identity"

I read on some other posts here that I should direct message support, but there is no direct message button (it seems that it should be on the top right corner, but all there is is the bell icon and my profile picture). Help would be greatly appreciated.