I recently started an e-commerce business, and out of my first 18 orders shipped by US Mail with delivery confirmation, 3 of them haven't shown up in the online tracking system as being delivered even though (apparently) they were, in fact, delivered. They just remained listed as "accepted" at the post office from which they were shipped.
The first time this happened, I had been anxiously waiting for the shipment to show up in the tracking system as "Delivered" for two weeks, and I was about ready to contact the buyer and apologize for the apparent delay, but then I found the buyer's positive feedback rating saying he was happy with his purchase, so apparently the order was, in fact, delivered, even though it didn't show up as such in the tracking system at usps.com, and still hasn't.
How common is it for this to happen, and what should I do about it? The first time it happened, I called the Postal Service in the hopes that they could confirm that the order had been delivered and perhaps manually update the tracking status accordingly, but they couldn't tell me anything about the tracking status and just told me to check it online, which, as noted above, has been stuck on "accepted" status indefinitely. Since then, I've had two other orders where the tracking status has been stuck on "accepted" indefinitely, and I've just crossed my fingers that I won't hear back from my customers saying they never received their orders, but this hardly seems like a good solution. To have this happen on 3 out of 18 orders (or 17%) is not a good success rate, and it seems inevitable that it will sooner or later lead to some confusion over whether or not an order has actually been delivered, while opening the door for an unscrupulous buyer to exploit this flaw in the tracking system to claim that they never received their order when, in fact, they did.
Does anyone have any insight or advice on this? Thanks in advance for your help.