Thanks sixty 60 for messing up a family Christmas lunch!

I use sixty 60 every single day and this morning I put in an order for our family Chritsmas lunch. Order was placed just past 10:00 in the morning and a delivery promise of 12:00 was made. All the products was available and they were as usual very eager to take my money. 12:00 came and went and they kept moving the delivery time. By 14:45 I phoned them and the Lady said that they had some system error and that they will sort it out. When they eventualy staeted shopping my order, 3 of the products was not available anymore and the rest of my order is about 4hrs late. Now it is expected of me to just shut up and accept this!!! I have screenshots of everything.