Delay in Delivery

I ordered Christmas gifts for my kids ond 29 Nov. I made extra sure that the expected delivery date was 07 Dec. I received a Delay notice... new delivery date was 12 Dec. Once again I received a Delay notice... new delivery date was 18 Dec. And again I received a delay notice today... new delivery date was 31st of December. This is unacceptable. I need the gifts before Christmas or my money back immediately.