I would like to second the recommendation for the referenced article by Patrick. Big kudos to patio11. 3 years back I had an issue go in my favor (for almost $

I would like to second the recommendation for the referenced article by Patrick. Big kudos to patio11. 3 years back I had an issue go in my favor (for almost $2k) regarding a dispute with an auto body shop when I started asking them questions in a 'professional' manner (for documentation purposes) and questioning regarding their processes that they were following. I used the article by Patrick as a template and and the auto body shop just folded on the case.