Sporting Goods & Bicycles - Mountain Bike Mens Large

Diamond Back Heist 1.0 Large. Only 6 days old - had 6 rides on it up the road and back that's it. A plan gone wrong for me - I paid 500 for the Bike on sat the 5th march and 30 quid for nuke proof pedals...Was supposed to be off roading with some friends but has fallen through... so I'm after a cycle cross. The bike still has a free service available for it from cliff pratts in Hull which is where I bought it from. I have receipts etc. I cant go any lower than 400 on the bike - its only 6 days old.