Hi Anne.
Thanks for your purchase.
Yes, exactly right.
You can purchase the Business License and install/register your license key on up to 3 sites for yourself or your clients.
Please note that only the license holder / purchaser (i.e. you / your account) can submit support tickets.
If a client wants to submit their own support tickets, they should buy their own separate license through their own separate user account on our site.
I hope this clears things up.
Please let me know if you have any follow-up questions on this topic.