When you enroll in our online Udemy course that means enrolling in an indefinite class (with no deadlines), so you should always have access to mod.learntomod.com. But you won't have access to our LearnToMod hosted private server on Minecraft. You'll be able to use the simulator, but won't be given a private world on Minecraft. 

To receive access to our private Minecraft server, you must upgrade and buy a 1-yr LearnToMod subscription.  If you choose to buy a 1-yr subscription, the next step is to log in with your current login email and password, then enter your new access key. Your progress will be saved and transferred automatically.