This is just a deposit, basically supermarkets have monitoring, you can call the supermarket monitoring to prove that you pay behavior.

The loss of the shopping ticket is generally not returnable, the invoice is shopping evidence. But if you keep a small ticket can also prove that this shopping center purchased items. But the legal effect of the invoice is greater than the shopping ticket, you can find the mall responsible for the negotiation. No shopping invoice, it is difficult to prove the existence of a contractual relationship with the seller, can not enjoy the "three packs" treatment, can not ask the mall to return the goods. But if there is one of the following three cases, even if there is no shopping invoice, you can still ask for a return.

1, there are receipts or other evidence to prove that the product is sold by the seller, you can ask the seller of the product to return.

2, the producer or seller of the product voluntarily accepts the return.

3, recognized by the relevant administrative departments as substandard products, you can ask the producer of the product to return.