I had a similar issue a few years ago where I had ordered an Alltek MPU and it didn't arrive but indicated it was delivered. I filed a complaint and reached out to the seller and nothing arrived. The seller ended up sending me another one (I made this purchase on Amazon as I had a gift card). A couple months later, my neighbor dropped off the original shipment. The shipper had delivered it to the wrong address and my neighbor was in Florida for the winter, so it sat on their porch for a few months.