i am also in the same boat! I have a 2011 Macbook laptop and have never spilled anything on it! It also does not travel with me much, but when it does I keep it in a secure case. Anyway, I was in love with this machine until about a week ago when my track pad started acting up. I brought it into the store and he asked me if there had been water damage. I said no and he said that if that turns out to be the case (no water damage), they would replace it for free under the warranty. A day later, my trackpad had been replaced for free.
Yesterday, my E and F keys stopped working. I took it back in and again was asked if there had been water damage and I again said no. I asked him if there could be something "serious" going on since first the track pad, now this. As he was running a quick diagnostic test, he said everything else looked perfect and then told me that they'd fix the keyboard within 48 hours and that it would be covered under my warranty. I noticed on the receipt I signed that without warranty, it would cost $200something. Later that I night I received a call that there was "some evidence" of water damage and that my only option was to allow them to send it to the repair center for $775. I repeatedly asked him what sort of "liquid damage" and he simply said there was some "corrosion" but did not mention that a strip had changed colors or anything like that.
I went to pick it up today and asked him if ANYTHING else could have caused this since I have never had any liquid near my computer. He showed me a photo, which just looked like a bunch of dust that had come in through the vent! He told me it was "dry" liquid damage and had probably been there for a while. When it became apparent that he was not going to budge on this accusation, I asked him if he could meet me halfway between not fixing it and charging me almost 800 dollars. I of course offered to pay the $200something for the new keyboard outside of warranty and he kept telling me that it was simply their "policy" to fix all the parts that are vulnerable to liquid and I had no option of only buying the keyboard. Why is this the policy? No straight answer. I also asked him repeatedly why they didn't see any evidence of water damage when they fixed the track pad if the water damage had truly been there for a while. Again, no straight answer. Just a lot of smugness and refusal to sympathize with my situation-- I work from home and need my computer. I am also back in school and can't spare almost $800 to fix a problem that should not cost over $300, according to their own prices. I'm guessing he simply believe me, which I guess I understand. However, after all of this I can't help but feel paranoid and start wondering if THEY did something to it, or if they accidentally switched parts with another damage computer when they fixed my track pad! I know that sounds crazy, but that's how sure I am that I haven't damaged my laptop.
I am absolutely livid. I have spent thousands on Apple products and convinced many people in my life to switch to Mac and to invest in iphones. My biggest sell has been the fantastic repair center/customer service. Because I work from home, I had to take my laptop home with the broken keyboard and buy a cheap microsoft keyboard to use for now. I do plan to keep following up on this, becase something just doesn't seem right, but I fear that it's hopeless.
Does anyone who's posted on here with similar issues have any good advice?