[garblegarble]

>Took it to an Apple store and was quoted £700 to fix it which is equivalent to almost half the cost of the laptop. For a single key. Absolute insanity.

I've had this happen to me, although I argued (successfully) that the keyboard was defective and I was trying to repair a stuck key (this was the previous butterfly mechanism) and they did a replacement under AppleCare.

The tech even told me that replacing keycaps on the butterfly keyboards is extremely challenging, and even they break the keys sometimes.