If you need to send 44 emails before you place an order, I also consider that being entitled. No company has time to answer 44 emails from a potential customer. That probably puts them at a net loss for that order.
I've dealt with many companies in my life, and Carbonda ranks among the top when it comes to response times, and being helpful/informative.
I once tried to ask Specialized what hubs they were using in their "DT Swiss" wheels, because I needed to order a different freehub body. It took me weeks of jumping through hoops and going through many different channels, before I got a useful answer (they were using Novatec hubs btw).