Construction costs are currently skyrocketing

The above also applies to you.;)
Keyword Entgelttransparenzgesetz

Yes, only "bad" if you are paid according to a collective agreement. Then anyone can see who gets what...

We had already analyzed this. You are allowed to see other salaries of people with the same job title. However, a chief physician is not allowed to ask what the managing director gets, for example.

I understood correctly that your current invoice should be 5 thousand euros higher than the list prices from April?

We were also annoyed about the sanitary sampling back then. In advance, several acquaintances who did the sanitary work themselves told us: "The list prices are not that relevant because you always get a big discount anyway."

For us, the removed standard items received a small credit, and the sampled items were just under the list price. Not mega cool, but it could be worse.

It is not the invoice that is higher but the offer now turns out to be significantly higher compared to the sampling appointment. Back then, we went through every single point in the bathroom, were shown what would be installed "standard" without extra charge, and were amazed. Nobody uses those things anymore. But okay, we have not paid any direct tuition fees yet and can correct it.

The question is, where is the discount supposed to be if the calculation rose from 9k to 14k for the same scopes? Ultimately, the general contractor buys the stuff there and has it installed by his employees. He wants to recoup his "expenses." Since I did not receive the offer in writing, as it goes directly to the general contractor, I do not think anything will move downward in price. His discounts will already be deducted; otherwise, it would not show 14k. I think that’s what you were getting at? It is also clear that if the standard items are now removed from our calculation, we will not receive a generous credit. Still, we pay significantly less elsewhere for the quality we want. We will have a regional building materials dealer make us an offer; the parents have a business account there, maybe it’s worth it.

...
It is also clear that if the standard items from our calculation are removed, we will not receive a generous credit. Nevertheless, we pay significantly less elsewhere for the quality we want. We will have an offer made by the regional building materials dealer; since the parents have a business account there, maybe it will be worth it.

In my opinion, no one can compete with the big online retailers when it comes to medical supplies despite the resulting transport costs. Only the question of installation remains open?

In my opinion, no one can compete with the big online retailers when it comes to medical supplies, despite the transport costs incurred.

Pharmacies and medical supply stores somehow belong together…

The question is, where is the discount supposed to be if the calculation has increased from 9 to 14k for the same scopes?

That is the crux of the matter. In the house price from the general contractor, you already have amount X for the equipment and installation of the sanitary items. Therefore, in the worst case, the additional costs may amount to the sum of the list prices (minus the reimbursement for the actual products). Surely you spoke before pulling the emergency brake. How does the general contractor justify the additional costs?

Exactly, so almost for nothing.
In M you are poor with it, in Hintertupfingen the "king".

Are you referring to the 5000 euros net household income for a three-person family? Because with that you are very far from being poor even in Munich. Even if you pay 1800-2000 euros rent for an apartment, you still have 3000 euros left. That easily gets you by in Munich as well. It's not like everything is more expensive here. Groceries in supermarkets/discount stores in Munich are also not more expensive than, for example, in East Frisia (I use that as an example because we have also lived there). Gasoline is sometimes even cheaper here than in the northwest.

even better is actually working from Zurich with a mailbox apartment.

According to my former colleagues in Zurich who live in Germany, that doesn't work because in Zurich they check very carefully if you really live there. So someone regularly comes by and rings the doorbell.