About unity infringement

Say I made a website and put some unity web games up on there that I have made with unity free. And then charged people to be using my site say £1 a month and classed that as money to pay for services like the dedicated server that is running the website.

Would I need to buy unity pro because they would think I am selling my games rather than getting the money to pay for services ?.

Here is part of the e-mail I got back from the sales team, hope this helps other people.

In that case you can indeed sell your games as stipulated on the FAQ link below.
http://unity3d.com/unity/faq.html

You don't need to buy Unity Pro unless there are features there you need.