If you read the above policy it clearly states that you may return an item with out a receipt however you will be given the lowest most recent price. I am sure it probably states the same on the receipt you lost. Not every customer service rep is nice I relize this but if you do not come prepared then the fault lies with you. Try a credit card it will keep a clear record of what you bought, when you bought it, and how much you paid. Be proactive ask if you can have one emailed to you if you have an issue being responsible for your purchase records. Or say "thank you for all you have done" to the probably very nice person who is trying to help you and has no control over what you get in regards to a return, they are working there to pay their bills not to put up with ungrateful consumers who can't keep their spending and record straight!