I have signed up for Pro

Dalle, 

Unfortunately, we are unable to get personal information from you to look up your account to see what the problem may be.  You will need to go to https://support.zoom.us/hc/en-us/requests/new to submit a support request for them to look at your account and see what is going wrong.

Hi @Dalle,

I suggest you check https://zoom.us/account/user#/ - you may need to assign your new license to yourself, by Editing your profile under that link.

Hope this helps.

Rupert