I ordered 2 items from Seventymm.com on 23rd Dec'11, the orderId is SMA0039868
From their site I can read that they deliver between 7-10 days

Today(20-01-2012) I talked to them, which is the 5th time I am talking to them, and I come to know that they still did not deliver my order. Each time I call, they ask me to give 3-4 more days to dispatch.

This tuesday, they confirmed me that they are having the items and will be dispatching my order on wednesday(18-01-2012).
Now today(friday) I called and they are again telling me to give 4 days. This is really ridiculous.
Each time I ask them to forward my call to some senior person who can explain me the proper reason and solve my query, but they even dont do that.

Now, I am totally fed-up and want to take some strict action against the fraud to a consumer. Can u tell me anything that I should do, I mean where I can complain so that some strict action can be taken against them

I know money refund is one of the solution, but please suggest me something/somewhere where I can put my complain and it will be entertained.