New Release Macbook Air   £4 an entry  500 entries in Total A-E Letters - 100 Entries Per Letter  For free entry method see T&C's  Free Delivery to the winner  *If all of the tickets the competitions does not  sell out by the time the countdown timer reaches  zero, an additional 7 days will be added on to  the countdown timer. If all of the tickets have  not sold after the first extended time period, a  7 day extension will be added up to a maximum  of 4 times. If all tickets have not been sold after  4 extensions of 7 days, a cash alternative prize  of 70% of tickets sales will be awarded to the  winner instead of the prize.