Hi @Fernando_Cucchietti , welcome to the forum 
You’re right, there is a lot of useful information here in the forum, but for your specific case, I think the best way to solve it is to create a support ticket, by following the instructions here: How to contact our Support Team 
I suggest that you explain to support what you have described here. To me, it appears you require a ‘paid team’ within your organization, so feel free to mention that to them, it may help speed things up.
You can read more about orgs VS paid teams here, to make sure it suits your needs:
I’m not sure if this applies to you but this page may help:
And btw, you may also eligible for a 50% discount.