At the risk of being called a hater
I posted early on in this thread, but deleted it hoping things would work their way out and settle down.
Emmanuel, I am going to guess based on your name and location that you are perhaps Hispanic. Which is fine with me, I work with several, and like every group of people, there are good and bad. I will also put forth the idea that perhaps English is not your first language, and again, that's fine, your english is better than my Spanish by quite a long ways. In fact, one regret I have is that I did not take Spanish in school, but I'm old, grew up in the upper midwest, and at the time didn't think I'd use it. Well, I was wrong there, that's for sure
I think some were rubbed the wrong way by your seeming indifference to the "rules" of the English language early on. For many of us, spelling, sentence structure, and punctuation are something we like to use to more clearly put forth a thought. I get that many younger people have grown up with text/IM/whatever shorthand, but it can be confusing for some that have not immersed themselves in that culture.
It is very hard on an internet forum to get a real sense of tone in a person's posts. I think most people would agree that most members will try to help where they feel they can.
A lot of the posters here have been here a long time and everyone is a little different in how they carry themselves on an internet forum. Steve (pontiacgp) can sometimes, to those that haven't been around a while, come off as a know it all. I think really he just is trying to point out things in a manner different than others do. I myself got tangled up with a new member a couple weeks ago over a post, which didn't end well. His first advice to you about the invoice info was sound, and believe it or not, he was looking out for your best interest.
There are enough people being jerks to each other in the real world, I'm hoping everybody can take a step back and get a fresh start.
Several people have given you good, sound, useful advice, and it's good to know about the shop you are/were using's shortcomings to perhaps keep someone else from becoming a victim of their inexperience.
Looking forward to seeing that 'vert back on the road