Some elaboration. I work for a USPS contractor & PP sometimes gets 'if there's room' service, meaning once the higher priced items (rate wise) are loaded to a particular destination, if there's room, they'll load the lesser priced stuff. I've seen periodicals & other 3rd & 4th class stuff sit for a week. My guess is your package got mixed in with some *slow* mail.
To try & calm your buyer, maybe you can scan the ins. receipt & email him a copy. The bar code portion of the receipt is on the package & you can check to see if it has been delivered by doing the following:
A record of delivery is maintained for insured mail by the US Postal Service; however, this information is not available online or via a toll free number. If you would like a copy of your delivery record, please visit your local Post Office and complete PS Form 3811-A. Request for Return Receipt After Mailing. The fee for this service is $3.50
To try & calm your buyer, maybe you can scan the ins. receipt & email him a copy. The bar code portion of the receipt is on the package & you can check to see if it has been delivered by doing the following:
A record of delivery is maintained for insured mail by the US Postal Service; however, this information is not available online or via a toll free number. If you would like a copy of your delivery record, please visit your local Post Office and complete PS Form 3811-A. Request for Return Receipt After Mailing. The fee for this service is $3.50