[EquitableEngineer]

The only thing your initial message is missing is a large font headline like a newspaper lol. In all seriousness though if this really was a genuine mistake on the part of the courier then I am confused about what exactly it is that you need help with.

If they have started an investigation then surely it's findings will be in your favor. Case closed. No need adding half truth's and complicating the situation. Just let the situation play out and if in the unlikely scenario that they rule against you then you can be helped. As it stands this is purely a customer service problem not a social engineering one.