Can items be purchased in 1-2 business days in the media market, even if they have not been ordered?

I want to buy a new laptop in the media market. Being from Luxembourg, I can't order it online. I went there Friday to buy it but it was not available. He says it will be available again by Tuesday at the latest, according to the website. Is this really the case? Should not I still have to order it there?

If the question is understandable, an understandable answer is also possible.

I wanted to know if the laptop will be in the store even if I do not order it online.

I did not understand the content of the question.

Therefore very flat rate - no retailer is obliged to sell you something.

If the device is not ordered, it does not come.

The clerk told me it was Tuesday and I would not have to order it.

And then why the question? He probably knows best.