False propaganda. According to relevant public information, the routine of full refund for eating and drinking by stages is a marketing tool adopted by some travel companies to attract consumers, and its essence is a false propaganda. This marketing method usually promises that tourists will provide free accommodation during the tour, and tourists can choose to pay by installments, while ensuring that tourists enjoy good service during the tour. If they are not satisfied, they can get a full refund. However, in practice, this promise is often difficult to fulfill, and tourists may be required to pay extra, or the quality of accommodation and catering is not as good as promised.