If you buy an imunify360 license from myduniahosting, please do take note that you will be assigned with an IP based license.
Please follow Cloudlinux Imunify Installation guide on the steps to install imunify if you haven't done so.
To Activate your licence on the server, you will then need to run below command in your shell.
imunify360-agent register IPL
You will get OK response if your registration successfull.