Sun Legoland Tickets ?

Hi, I have two tickets valid for one visit to Legoland Windsor on the 19Th July 2012. normal ticket prices are 34.20 on the gate for children and seniors and 43.20 for adults or 20.52 for Children and seniors brought more than 7 days in advance and 25.92 for adults 7 days in advance. selling both tickets for 20 or very nearest offer, thanks in advance.