I am not a lawyer, this is not legal advice. Just how I would think and approach it. I would say something like from my point of view this happened. Keep it factual from your point of view. Then I would put question like would if you were a business and you found this would you take the tire off balance It and reinstall it if it was crossthreaded when it came in? Or would you want to charge for more work. Spend time wording it so you do not say anything bad but they think it when they read it. Then you can say they deny everything so each person should call the store and ask the store for their side of the story. But you give them questions to ask. Be sure to include their phone number so they can get both sides
The phone should be ringing off the wall. So you make sure you say it is your side. Put some questions then tell them to get the other side before coming to their own opinion. If you tell people not to do business with them you might get in trouble. But you can ask if this is the kind of company you want to do business with or that you will no longer do business with them and why.
