I had similar experiences. I commissioned them twice over the past few years. They forgot to ship my first commission and when I asked a year later they said they couldn’t find it. and my second, about a yr later, took months to ship AFTER it was completed. The same “I forgot/it got lost/I can’t make it to the post office” explanations as the OP. really thought they’d improve, but a friend recently had a similar experience with a ref commission. He gave an eta of 1-2 months and when the client asked about progress 4 months later he “lost the file”. I think he eventually got the commission.
Their old handles are MintiMudi and mixeddisaster and a few others. they’ve had bewares here before.