When (time of year) did you ask for a quote?
The messaging was rather disjointed, but I'm still not sold that more than two people (BF side) were involved in the exchange. I watched an interview with a BitFury guy at some conference from Oct 2017 where he said the price for B8 units was 5200 and I was quoted $7k. Maybe they do it to see if you balk at the price tag or ask more questions?