Two Flights to Cancun for New years!! £500 cheaper than I paid!! Winter sun ?

2 flights with Air Canada to Cancun for New Years I was really looking forward to this holiday, but I have had a really nasty break-up with my ex and we will no longer be going... The flights were booked through the flight centre, so are above board, I will pay the fee to change the name. The flights cost 1480, they are via Toronto with short stop times at the transfer Thursday, December 27, 2012 Air Canada AC857 on a Airbus Industrie A330-300 Confirmed 1200 Depart Heathrow, London United Kingdom Economy Thursday, December 27, 2012 1505 Arrive Lester B Pearson Intl, Toronto ON - Canada Journey Time: 8:05 Thursday, December 27, 2012 Air Canada AC1256 on a Airbus Industrie A320-100/200 Confirmed 1640 Depart Lester B Pearson Intl, Toronto ON - Canada Economy Thursday, December 27, 2012 1955 Arrive Cancun Aeropuerto Internacional, Cancun Mexico Journey Time: 4:15 RETURN Friday, January 04, 2013 Air Canada AC1257 on a Airbus Industrie A320-100/200 Confirmed 2055 Depart Cancun Aeropuerto Internacional, Cancun Mexico Economy Non Stop Saturday, January 05, 2013 0140 Arrive Lester B Pearson Intl, Toronto ON - Canada Journey Time: 3:45 Saturday, January 05, 2013 Air Canada AC868 on a Boeing 767-300 Confirmed 0810 Depart Lester B Pearson Intl, Toronto ON - Canada Economy Saturday, January 05, 2013 2030 Arrive Heathrow, London United Kingdom Journey Time: 7:20