Can I change device

Recently, I bought this VPN for 5 devices and so far have activated it on two devices. I would like to know if I can somehow remove a device from the subscription? That is, can I make it so that instead of two activated devices, I have only one? Or do I need to buy a new subscription if I reach the limit?

You can manage your activations against a given subscription from your Norton Account. Log into your Account and click the user icon at the top right and hover your cursor over My Account at the top right, and click on My Subscriptions. Find the subscription you want to change and click on Manage Licenses. Find the device you wish to remove and click on the trash can beside it. That will free up the activation for use on another device.