Delivery dates that are given online, knowingly ca...

Delivery dates that are given online, knowingly can not be met. Have ordered a part in the store, which I urgently needed Saturday. Since I had not received a confirmation email, I called the customer service. I have never been told that rude that she does not know if it's there. I'm just supposed to drive by. Once there, I was told that it is not there yet and they did not receive any deliveries on Saturday, never! Incomprehensible! How can the appointment be guaranteed online?

A great customer experience caused by incorrect or completely missing data processing. In which century does Conrad work?