That’s not true. It doesn’t have to be the same shop, the shop just needs to sell the item. Someone else mentioned Edeka and Rewe, which both have varying inventories. Therefore the specific shop might not sell the item you bought in a different shop of the same chain, therefore it’s not returnable there. Many large shops (don’t remember how large they need to be) are required to take everything though.
That’s not true. It doesn’t have to be the same shop, the shop just needs to sell the item. Someone else mentioned Edeka and Rewe, which both have varying inventories. Therefore the specific shop might not sell the item you bought in a different shop of the same chain, therefore it’s not returnable there. Many large shops (don’t remember how large they need to be) are required to take everything though.