No I think you will find he/she is a cheapskate, Tesco offer a deliver 7 day service or deliver 3 day service, it means you can have delivery on your specified days, not that he/she has had them. But just a note on the free delivery, you pay for free delivery in advance, mine persoanlly is paid up until the end of May, once again they aren't delivering so taking money under false pretences.
Actually Tesco are not taking money for Delivery Saver at the moment, you get the benefit but are not paying.