If its verified that it came from there the mist will be store credit
take it to the store and speak to the manager, let him know that u don'nt have a receipt.
As long as it has the tag or a credit card receipt they should exchange it for you.
Call the store & ask them.
If you have a points card or used a credit card they can look up your transaction using that, and you will get a full refund.
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