Hi, a buyer purchased a Megabloks set from me recently. I accidentally sent him a few parts that were incorrect for the set, and I will be sending them the correct parts and they will send me back the incorrect parts. I'm trying to create a shipping label for them to send me back those incorrect parts, but I'm having some trouble figuring out the best way to do so.
How do I create a USPS prepaid shipping label where I don't need to specify an exact mailing date, as I don't want to restrict when they will be able to use that label and send the item back to me? I've used return labels similar to this where the label is created, but it can be used at any time in the future. Or if this is not possible with USPS labels, what might be the best way for me to get a return label to the buyer so they can send me back those incorrect parts?
