I have had long conversations with the team about this because I don't like feeling tricked. The deal says "unlimited" but because it's unlimited the team is super afraid of it being missused and have instead set limits in the terms. I have been informed that:

I'm not allowed to sell my services with Zionbuilder included unless the price is at least higher than the subscriptionffor a Pro plan of Zionbuilder. Granted, the price is not high but it still pretty much means that we are not allowed to create campaigns or even an Appsumo deal where we put our services out for a ridiculous price. Zionbuilder has put out their software for us for $99 which is a ridiculous price for such a great piece of software but as an Appsumo user, I buy deals because I know they are "supposed" to be ridiculous. Finding out that I'm not allowed to even set my own pricing for my services, that's a big deal.

I'm adding a few quotes from our conversations.
From Zionbuilder
"Your business is scalable you could invest $1M in ads and the next day you will have more customers than us using our PRO plugin. We don't want to compete with ourselves."

Here is the fear of the "unlimited" license at play. Better to have an honest deal with 500 licenses or something that we can actually do what we want with rather than set up a bunch of fine print.

My question to Zionbuilder from the start was the following.

"Hi. I have the Agency license and I'm starting a hosting/web agency business. I want to provide my customers with Zionbuilder. My plan is to sell my services in different tiers to make it easier for my customers to choose something that fits their budget. In turn this translates to me not always building their entire website but sometimes only helping them getting started for a lower price and helping them on demand for an hourly payment."

I was informed that this is a complete break of the terms.
"The way the license works is that you can create a website for a client and he pays for your web services like a redesign of his website. Those web services are usually valued at higher costs than our product, and each time is a different website, the amount of work they do is significant for each project. Making one single product and selling to multiple users acts like a SaaS and it is not allowed."

In other words. The only way you are allowed to use this license is if you build an entire homepage for a customer with Zionbuilder. Furthermore, you must have some kind of a monthly plan for this customer that at least costs more than the Pro plan of Zionbuilder as not to compete with their pricing. Or, and I quote "we will not hesitate to terminate any license".

I tried talking to them fo find some way to achieve my goal without breaking the terms but I was just met with no, no, no. After my 5th email, they stopped responding altogether and have ignored me completely.

Unfortunately I found this out after my 60 days so I'm stuck with a license I can not use.