Business ProfileforGadgetPickup dot com LLC

On June 8th I received two quotes for 2 Apple iPhone X Max phones that were in excellent condition. They quoted $532 and sent 2 labels to affix to the two boxes with our phones in them. They instructed us to take them to the usps, which we did that day. Weeks go by and we get this email from SWAPPA that they haven't received our phones and their closing out the quote/file. I traced the phones with the usps tracking number **********************.When traced, it says "shipping label created,USPS Awaiting item 06/08/2022 10:41 pm Minneapolis Mn *****". So it appears USPS lost or stole my two phones. I went to post office they gave me an 800# to call. After being shuffled around forever, I am informed there is no insurance or recourse to get my phones back! I write to this Swappa and they tell me it's my problem basically.I own a shipping business, 30 years now. If you ship with FedEx or UPS you have recourse if it disappears. Since Swappa utilizes a mail service that's cheap to ship but offers no liability coverage it is Swappas responsibility to pay us for our phones since we proved we did exactly what they asked us to do, with their carrier, using their labels! Swappa pay me for my phones. You probably received them and resold them, I have both serial numbers to search for them.