The letter says he reached for 3rd and it just seemed like the engine freewheeled. Like wow man...it just wasn't there.
Was that before or after the horrendous CLANK and GRIND sound that surely occurred sometime previously?
LOL, so yeah...he sent you a "I was on my way to church..." letter. So what, you sold a performance transmission to a guy for a performance application...of course he's going to drive it hard...that's what it's for.
Is this really about punishing someone for sending you a sugar coated, complimentary letter that contains less than the truth about the failure circumstance?
What if the letter said, "Enclosed is my transmission. I was hard on the throttle in 3rd gear at the 1000ft mark in the last round of eliminations, and the POS grenaded. You guys cost me a grand, thanks a lot. Car makes 599 foot-lbs, trans should have held it...fix this POS under warranty, and be quick about it." Would you have honored it then? No? Why? Didn't like his tone? It was truthful wasn't it?
At least the guy in the letter was complimentary and WAS a good customer at that point.