Not trying to be negative. Just trying to help ensure people don't get scammed. One big escrow you can use is cryptothrift which is becoming a good source to buy stuff with cryptocurrencies. Good luck with your sales!
Can these codes be used for any shipping method such as shipping to store? Can they be used physically? Like actually using the gift code in a Walmart store?
yes they can be used to purchase at walmart.com, walmart stores, and samsclubs.com/stores. When taking them into the store it would be best to print them out or add them to the gyft app