Originally Posted by
Often1
+1 - A waste of time.
I would take the no response as the answer. Nothing is going to change. OP may or may not someday get a response.
Eh, I see no harm and a potential resolution. The account is already closed and gone; what worse could happen by contacting executives?
That said, OP, you REALLY need to get a native English speaker who is competent at written communication to copyedit your letter, ESPECIALLY before you send it to anyone with an executive title. Words like "wanna" or other incidents of bad grammar will NOT win you any favors with the higher-ups.
Even if you do not believe this is necessary, trust me: it is necessary.