If the product has a defect for which the company is liable, the consumer is not obliged to accept a gift voucher as compensation. The seller must provide compensation primarily by repairing the product, or by replacing it with a corresponding product. If this is not possible, the consumer may demand a price reduction or a complete cancellation of the sale.
If the customer returns a non-defective product to which the seller has not granted a right of return, providing a gift voucher as compensation constitutes good customer service. Thus, the seller has no obligation to take the product back and cancel the sale simply because the consumer changed his or her mind. Only in distance selling and door-to-door sales can the consumer cancel the purchase without giving a particular reason for doing so.