The letter is said to be directed to you in confidence. It is not. It is openly published on scribd for all the world to see.
The letter is said to be written by an ex-executive of the company. It is not. Or, if it is, it is written in a style that has "lawyer-written" stamped all over it.
The person making the claims is saying he is doing this to uphold company values but is far from disinterested. If he was fired for whistleblowing, that is wrongful and he gets large damages. Otherwise, not. So, maybe it is sincere and maybe not. But who knows?
The person also waited two years to write this letter. Does this undercut its premise that its goal is to correct wrongdoing? Or was it now put out opportunistically to further some litigation goal instead? Again, who knows?
Ditto for a complaint being made just now to the Washington agency responsible for fraud. Why now and not earlier if the problems were serious and pressing?
Then too, the alleged victim (Discover Card) is hardly a naive consumer, knows how to defend itself, and had known enough about this to ask questions going as far back as 2012. Is there, then, less than meets the eye concerning the claims of its having been overtly cheated?
Everything stated in this letter may be true and damning as it appears. I don't know what happened, nor do I know the people involved. But I do know when something is framed insincerely and this letter is framed insincerely. It may all be true but its style and timing do not ring true.
This has to have another side to it, in my view, and it is wrong to take it as self-evidently true without hearing that other side. What we have now is only a one-sided story that is heavily slanted in its presentation.
Certainly if I were a board member to whom this was purportedly directed, I would be highly skeptical. I would assume instead that I was not even the intended audience for the letter. And I would probably be right.