My MacBook Pro keyboard would get stuck and behave erratically, and when I finally took the laptop to the Apple Store they also found out that the batter was da

My MacBook Pro keyboard would get stuck and behave erratically, and when I finally took the laptop to the Apple Store they also found out that the batter was damaged. They're replacing the whole top case. I keep my keyboard very clean, but it's so shallow that even dust can mess up the keys. No idea what was wrong with the battery, they just said it didn't pass their tests. I'm selling the laptop while it's still under warranty. One would think EUR1800 are enough to buy a laptop that you can actually use because the keyboard works, but Apple don't agree.