Bunk bed supplier not to use

I asked for a quote based on a picture of a bunk bed. Quote with 1 line item of R26k. I asked for a breakdown of cost. This was the response from Perry "I do not send costing breakdown to any of my clients….existing, new or prospective, it is not how I work. If you are not satisfied with my quote for whatever reason please feel free to use an alternative manufacturer. I have been in this business for 40 years and have never been asked for a cost breakdown, I am not about to start now."

Wow. Aggressive. Surely you can send a breakdown based on materials and labour. Other quotes received ranged from R13k - R18k. Not only is he rude but over priced too.