We aren't offering custom plans, so you must either have the corporate account to have three databases or downgrade to the advanced package and lose one of them.
As you can see in the index page it says that the Advanced plan has 2 MySQL databases, but in the free hosting page, it says it has 3 MySQL databases. I belive there's where the confution come
Why do you nead them when someone already said that you can put more than one software into 1 DB? If you want the three extra ones keep using Corprate.