If the issue only happened when a certain set of steps takes place on the site, it's pretty obvious you tried to rip off the supplier.
You knew what you were doing when you did it, and I bet that pissed the living hell out of them. I hope Z1 posts ALL of the info on this issue - I'm curious to see it. You sure jumped fast when they said they were going to call you out on it, telling them there was no need lol