Please follow the steps below to change the billing type from Monthly to Yearly:
1. Open https://www.dynamsoft.com/Secure/ITAHosted_Signin.aspx, and log in.
2. In the left menu bar, click Manage Number of Users or Space Size. Select Number of Users on Yearly Billing Option and add the yearly users.
3. Go back to Manage Number of Users or Space Size tag, Select Number of Users on Monthly Billing Option and change the number of monthly users to zero.
For the other billing questions, you can contact our sales at firstname.lastname@example.org to get more information.
4. Log in Issue Tracking Anywhere, go to System Admin | Users Management and change the status of users that you don't need to Inactive. Make sure the number of active users doesn't exceed your current license number. More details