If you look at an electrical shop, such as Saturn or MediaMarkt buys a cell phone, DVDs or a laptop, you put it on the cash register, it is scanned on the scanner, you get paid and then can leave the store. But how about big things? Because you can do a laundry machine, for example, bad on the tapes.
You get an invoice that you can put on the tape. What was agreed? The device will be delivered to you or will you drive it home yourself?
If you have paid the bill, you can go.
You go to an employee and tell him that you want to buy something?!
Then you have to fill out a form and get the part then delivered by forwarding / delivery service.
The bill comes on tape, is paid, and then you go with the bill to the pickup / goods issue, unless a delivery has been agreed.
Just as you do with furniture.
You tell the seller what model you would like to have, you write an invoice that you pay at checkout and then you pick up your household appliance at the goods receipt.
Seller looking for, saying "Hello, I want to buy a washing machine", seller cares about you. After you have picked a machine you get a piece of paper in your hand, with which you can pay at the cashier. If you do not call a lifer wagon your own and / or have 1-2 strong buddies, I would have the device delivered to me. Of course you have to tell the seller beforehand.