I've expired, I am getting higher prices now too. Please see this deal which I believe is better anyway :)
I was using the site at the other end of the 'Get deal' link which I think is reasonable :D
Dont know what site your using-I always check & book directly with the airline. Try Kayak for general prices.
Well I put the same dates in and it shows the same flights. I wonder why it's a different price for me.