Greetings, I ordered a solar generator recently and the tracking information indicates that it was delivered on Sunday, 2-5-2023. I have been routinely checking the tracking progress but received no prior notice that it would be delivered yesterday. Nevertheless, I didn't leave my apartment yesterday and had been at home the entire day. I have received packages from China before and I believe that they were eventually left with the local post office (USPS) to be delivered. I can assure you that no package has been left at my address yesterday and I don't know of any couriers that deliver on Sundays.