I have been able to return without a receipt if I have the card used to pay for the item.
No
It depends, if the tag is still on it, they can usually give you store credit.
If you do jot have physical receipt but offered your email at the check out and received a soft copy ... Then presenting the email version will suffice
If you paid with a credit card in the quick checkout station, they may have asked for your email address and sent you your receipt.
Not unless it's an online purchase.
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