I've had a similar experience in online ordering, only I ordered two toasted subs from Dominos and the guy only delivered one. So he says he'll be back with the other one (no apology), comes back about 30 minutes later, and says
"I had it in my bag the whole time, it must have fell to the back of the bag and I didn't notice it".
How does that even make any sense? How do you not notice a 1/2 pound toasted sub in your bag? The things come in these giant ass boxes that a blind person would be ashamed of missing.
So now I have two cold subs. Oh well, life's not perfect, deal with it. So I give the guy 15 bucks because the total came to 11-something, and he has the nerve to ask "Would you like your change? Because if you want change, I have to go back to the car and get it."
Oh I'm SORRY. I didn't mean to inconvenience you with retrieving MY change, the change that you should have in your pocket already. Does this guy REALLY think his service is worthy of a tip?
So I get my sandwich and guess what? There's onions in it, something I specifically ordered to be out of the sandwich. If I had known about the onions, I woulda took a bite and spit it in his face.