i don't get this some time but ill explain again for you.
As been said many many time that Season pass don't inculde any "Non Campaing Related DLC" here links of the place where this informations was
Link(shacknews article)
Link
-How much will the Mechromancer cost?
As a special thank you to our early supporters, the Mechromancer will be available as a free download to those who joined the Borderlands 2 Premiere Club by pre-ordering the game from a participating retailer. For those who aren't Premiere Club members, the Mechromancer will be available as premium downloadable content at the same time for $9.99 / 800 Microsoft Points. (from official FAQ forum)
Link
NOTE: The Borderlands 2 Premiere Club and other pre-order items are not included in the Borderlands 2 Season Pass. For more details about the Borderlands 2 Premiere Club and other pre-order items, please visit www.borderlands2.com/preorder and our Borderlands 2 FAQ: link up here (from official forum)
and from steam store page i found this
Note: If you have pre-purchased the game and received the Premiere Club content, you do not need to purchase this content.
[Edited by HellRaz, 10/9/2012 1:34:28 PM]
Maybe he just read it wrong :P
I'm just waiting for a trainer update.
WOHO!