why don't they sell the gold circle to hyde park

all the sites that sales hyde park tickets aren't selling the golden circle tickets (the aren't sold out) anyone knows anything about it?

They ARE sold out. They sold out on the first day. Infact I think they sold out in the pre-sale, I tried to get them from AXS 2 days into the presale and they had sold out then. I rang ticketmaster at 9am when they went on sale and they'd sold out. Best place to get one now would be from a ticket broker, tout, or from a package deal where you get hotel and travel included.