Marysville Motor Cars Inc

Asked them to put a new tire on my rim and put it in the dunk tank to check for leaks (on the rim, tire, valve stem). They had an entire week of holding my tire to do this. Called today to tell him I would be in to pick it up, got there, and then he tells me it's not ready. But he checked the tire (which had a number of holes in it from it going flat on me) and said it was a bad tire and the rim was fine. How do you know that if you didn't put a new tire on? Taking my business elsewhere.