Well did they publicly day he is not for sale?!
They said it just before winter mercato IIRC, saying that they refused to open talks over a transfer next summer (this summer 2014)
But anyways, let me explain how BvB works since many here seem to not have a single clue:
- BvB refuses to sell when they think they need a player that can't be swaped with a new recruit.
- BvB is always looking to replace players.
- BvB is willing to sell as long as they have a replacement in mind.
- People bring Götze case often but it worked just like it works for years at BvB, they sold Götze because they found a player to replace him.
- In the case of Lewa, they didn't find any successor last summer (2013), hence they refused to sell him even if it meant he would leave for free this summer (2014)
- There's currently no rumor about a successor for Hummels.
- Therefore BvB has no reason to accept to sell him according to how they work and plan things.