This was the only thing in your post I found interesting. If you spoke to them you should have evidence of the conversation. Post it here so we can see/hear what was said.
I doubt he did get anyone on the phone, considering right now are the biggest holidays in china (moon festival).
https://www.timeanddate.com/holidays/china/Even if he did get someone, that person has most likely no idea what crypto even is or if it is beeing used in their company right now.