Thai Square

We booked through Dimmi - dinner for 5 people at 6.30 at Thai Square - and I received an on line confirmation of the booking as well as a reservation number. On arrival at Thai Square at 6.20 we were very rudely turned away and told they only take bookings over the phone and that it wasn't their fault that the ability to book on line appears on their web side. They were unable to accommodate us. The ability to book on line through Dimmi should be deleted so that people's evening out to dinner is not ruined . Five Furious people!!