Return travel from Glasgow to Dundee for Easter weekend for only £11! ?

Return tickets from Glasgow to Dundee for Easter weekend for only £11! I bought these tickets and can no longer make the trip :( Outward travel by megabus from Buchanan Bus Station on Friday April 6 2012; dep. 2:00pm, arr. Dundee Seagate bus station 4:23pm. Return travel by train from Dundee rail station on Monday April 9 2012; dep. 4:47pm, arr. Glasgow Queen Street station 6:15pm. This journey has since gone up in price by more than £10! Seats reserved for both journeys, including in quiet coach A for return leg. 16-25 railcard is required for train journey. I am happy to send confirmation receipts via e-mail to confirm ticket validity prior to postage (or exchanging in person if Glasgow-based) if required. Also happy to sell tickets separately if only one is desired (coach ticket at £6, train at £5).