unable to have a meeting over 40mins even though I have Pro version.

Welcome to the Zoom Community, @tyee.

This happens a lot: you need to assign the License you purchased to your User Account.

See this web page for assistance:

https://support.zoom.us/hc/en-us/articles/115004976063-Assigning-a-License

Follow these steps taken from the article:

1. Sign in to the Zoom web portal at https://zoom.us.
2. Click User Management, then Users.
3. Locate or search for the user who you want to assign a license. There will likely only be your single account – click your account
4. Click Edit at the end of the user row. This will open a window.
5. Choose the User Type to assign, selecting Licensed.
6. After choosing the User Type, use the drop down to select the license. There should be an indication that you have 1 available user license if you have indeed purchased one or more new licenses. Click the available license.
7. (Optional) Assign add-ons can be included by checking the boxes for the add-on. You will not likely have any add-ons, so you might skip this step.
8. Click Save.

The license is now applied to your user account and you can use it immediately.