WordPress Plugin extended Licence help needed.


I have made one wordpress template, I have used Visual composer and Revolution slider in to that, I have just bought their extended licenses. Now, What is the procedure to use them in my template? I already have implemented those in my template but don’t know how to provide licence of those two to my template users.

Is there any licence file, I need to include in theme? Do I need to contact authors of both plugins to take personal permission of use?

Please do let me know as fast as possible because, I want to upload theme after this procedure.

Thanks in advance.