Why is it necessary to get a receipt when I buy a good or service?

For their own protection, consumers should ensure they get a receipt. It is the best and safest way by which a consumer can provide proof of purchase, as well as date of purchase. Goods that can be bought in stores are not usually exclusive to any particular store. Identical items can be found in a number of stores. The consumer will therefore need to prove that a particular item was bought in a particular store. Further, some refund policies stipulate the amount of time within which the merchants are willing to take products back. They will need to ascertain relevant information from a receipt. It is important to have tangible proof, rather than to have a battle about whether or not you did make your purchase from a particular store on a particular date.