Lost trust in sales representatives

That's basically how I see it too... I want to know everything beforehand. Once I sign, I'm caught like a fly in a web and every change comes with dictated prices... especially since there will definitely be changes. I also don't know what the surcharge for my desired front door will be. On the other hand, I don't know if anyone would even be willing to go for such a precise approach when nothing is fixed yet.

There are so many red flags, I think I would block that number. :)

"Expensive" is always relative when building a house. If your favorite option offers a different scope of services, it can quickly end up being more expensive overall than the initially seemingly expensive competitor who, however, has a good description of services and includes a lot in the standard package.

Then it should quickly lose its favorite status. Keep searching. You want to spend the money of a lifetime. You should have a good feeling about it, not choose the lesser evil.

A good gut feeling is also quite unprofessional.

Wait, they deliver a crappy floor plan that does not meet your wishes, and at the follow-up appointment you get pressure instead of an apology? I would definitely run for it.

That is the biggest nonsense I have ever heard. You only have to adapt to the neighboring development if there is NO development plan. With a development plan, you can build everything that is stated in the plan, regardless of what the neighbors have done. We were two of the last builders in a new development area and never had any problems or pressure regarding neighboring construction.

Run, run as fast as you can. ;)

They put so much pressure and make such a fuss without you even having seen the description of services? That is extremely unprofessional. Every reputable construction company I have dealt with has sent me their description of services along with the first information package.
Even our current builder, who really isn't into marketing and computers, sent us a draft of a contract first (so you can see what something like that looks like) and his description of services.

I don't even know why I’m still reading here, but: run....

I’ll save myself the rest of your thread now: These are highly unprofessional business practices.
A good builder should treat you on equal footing and not try to act condescending. It’s a handshake deal, you get a service, and he gets his money. There’s no place for pressure, contradictions, and withheld information. If they had nothing to hide, you would have a meaningful description of services in your hands.

Furthermore, I suggest you only judge whether a provider is expensive after you have read these documents carefully several times. You mentioned above that another provider was too expensive for you. But you can’t assess that without having the description of services from the "favorite" in hand. Often, prices are used to lure people in, and later every little extra costs a huge surcharge. Comparing builders is time-consuming, but it’s an effort you have to make before deciding.

We built our first house with a company that is not known to be the cheapest in the region. But it worked out well for us. We hardly spent anything additional on customization because we had some services in the standard package that we could cancel and were credited for. They offered good windows, large tile formats with solid material prices, etc., so you could easily stay within the standard during selection.

Look around again. Also step out of your comfort zone and ask companies again that didn’t get back to you after the first meeting. Everyone deserves a second chance. It would be a shame if a great builder is withheld from you just because a secretary dropped a Post-it off the desk. ;)
Also, search for blogs or reviews about the respective companies on the internet.

That says it all. Do you want to put up with that when you are spending so much money?
Do you want to start a house build, which is always somehow stressful, under such conditions?
Do you think the behavior will change once you have signed?

Well, I would also generally advise running away.
But it also depends a bit on whether this is really a commercial agent or if the gentleman is directly employed by the general contractor.
If a commercial agent, it could really be that he is the bad apple, but the company itself is proper. Then I would try to somehow contact the actual company, explain the situation, and hope to deal directly with someone from the company.
Or, as most here advise, better to look for something completely different.
In any case, I would definitely complain about the guy.

What exactly do you still like about the house construction company? The design of the logo? The coffee during the meeting? So far everything that can be bad is bad, and you can't judge the rest anyway with the missing information. Bye house construction company, nothing else remains here. Unless you like kamikaze actions. Do you dare to say which company it is at all?

There apparently has already been a case where customers even banned him from their premises, and yet he continues to work there. Even if he is "only" a representative, he still carries the company's name and that is apparently at least tolerated. Therefore, I would rather not try in this case whether changing the contact person would improve things. The project is simply too big and too important for that.