I have a customer address that couldn’t be searched. After waiting for a reply from the customer through Amazon messaging, I called the Post Office where it was going to be delivered. The clerk explained that it was a valid address with them for a Freight Forwarder who received 3,000 packages a week. I gave him the part of the address that I had not been able to verify and he said not to worry it was familiar to them.
So I know I will not get a reply to my message to the customer with such a volume of orders being delivered to them. My last day to mail to them is tomorrow.
Just a hint that USPS post office people are willing to help you if you have a question about an address that you don’t get answered through Amazon sources. I frequently look up Postal phone numbers of individual Post Offices when I need help.