When you create your account and subscribe to a paid plan for rekordbox for the first time, you'll automatically be offered a 30-day Free Trial.
Free Trials are limited to one subscription plan per individual account. As an account can have one subscription level during the Free Trial, any change to your plan level will be disabled during this period.
So once you have chosen your subscription plan, this will remain your plan level for the remaining Free Trial period.
You'll be able to change your plan level once the Free Trial period expires.
You can find the Expiry Date information of your subscription Free Trial period by logging in to your AlphaTheta account.
- Log in to your AlphaTheta online account, go to your Profile page, and on the left column under rekordbox, select Contract plan.
Alternatively, if you need to subscribe to a different plan level with rekordbox, you can always cancel your existing plan, and subscribe to rekordbox via a new account.