In my view this comes down to a personal determination of which of the following two scenarios is more credible.
Scenario One: a serious vendor accusation is made by a relatively unknown poster who only provides a questionable story without documentation to support his accusation and, who then, follows that with two weeks of dead silence despite requests for further information by the very people whose advice and support he seeks.
Conclusion: Low Credibility
Scenario Two: The vendor does not publicly discuss the accusation. However, numerous testimonials from current and past users of the vendors products and services are voluntarily provided. Further, the vendor is an industry stalwart with a long and deep track record for quality products, great customer service and high integrity. In addition, the dollar amount of the questioned transaction is comparatively small. Two questions: 1. Why would any rational business person compromise the integrity and reputation of their business over such a small amount of money? 2. Why would any rational business person choose to engage in a time consuming, public dialogue over such a comparatively small and flawed accusation?
Conclusion: High Credibility
In my view, this accusation is specious and should be removed from the forum. It helps no one, particularly pereza who comes across as either quite lethargic when it comes to follow-up or, more seriously, disingenuous.