GM / Chevrolet / Bergey Chevrolet 3 Transmissions in 101k miles. Dealer denied problem after 2nd. We have to pay to get 3rd one! Colmar, Pennsylvania

Bought new, top-of-line Chevy Tahoe in 2007.  Loved it.  Had all of the scheduled maintenance and then some. Transmission gave out at 60k miles!  Took it to Bergey's Chevrolet in Colmar, PA, who put in "a new one."  One month later, according to their records, I brought it back with the transmission still not right.  The dealer (Bergey's) said, "No, there is nothing wrong.  You just aren't used to the new transmission.   And, by the way, we just put in a new transmission so we are not taking that car apart again!" 

Now, 36k later, it needs another new transmission, at 202k miles, and we have to pay $900 to have it repaired because the dealer chose not to work on it the last time we brought it in.  We talked to Chevy.  They don't care about their customers.  We talked to Bergey's who couldn't even give the same story twice.  They had our car for > a week and we had to pay $900 to fix it this time.  Terrible customer service.  Terrible customer experience, although not a single person from Chevy, GM, or Bergey's cares.