Zhang, if you are in China I understand the difficulty but can you open a Facebook group and add instructions we gathered over time? Then all the customers who lost
Money can collectively work. There could be hundreds but they don't know where to look.
I will try, but you know facebook is blocked by Chinese government, right? I can use a proxy, but my facebook account was almost empty, setting a group means every foreigner who look at my background on facebook sees only one thing: that I am after the money I lost - not a very good publicity for a career seeker, right? It implies carelessness and narrow focus.
Maybe if I really do it well I can avoid negative impression for business-partner or employer or my customer who does me background checks. For example, balancing it by writing how to modify violin to its mirror (for left-hand use), to counter the careless and cursory impression I should otherwise get.