Hey @ElForoViajero, sorry if I built wrong expectations for you.
If you are a customer of our hosting you can reach our customer support at team@discourse.org.
Here at Support we do offer support into configuring and using Discourse. Customization and basic use of HTML/CSS/JS is offered at a best effort from the community.
If you have a tight deadline (and a proportional budget) please post on the Marketplace where great people like @pfaffman and @joebuhlig can help you out.