Not able to create user from zoom api

I have implemented this api to create user - (https://api.zoom.us/v2/users) and enabled the permissions in scope for creating user (user:write:user:admin user:read:email:admin user:write:user:master meeting:write:meeting:admin). But it gives this error - No permission, please contact Zoom customer support.

Once user is created, I have to run api to schedule a meeting (https://api.zoom.us/v2/users/${userId}/meetings) using the userId I get from createUser api. Please help in troubleshooting this

Edit - I read somewhere that its “due to you not having permissions on the account to be a developer. Please make sure you speak with your account admin and get the proper permissions” but how do I do that.