Mine did the same thing. When I first got it I delivered freight for a living. I had it in my shirt pocket and as I was picking something up to load onto my truck it was putting too much pressure on the APV. When I took it out to take a
vape, I noticed the break with my finger. I got all freaked out about it, but it is no big deal. Just take a file of any kind and smooth out the two rough edges where the break occurred. This will keep it from chipping further.
You could always contact Vapage and see if they will replace it. I just never saw it as a big deal and since it was my fault, never contacted them. It hasn't chipped anymore since I filed the rough edges down. I just try to be more aware of where it is at when I am doing things. This is not very difficult since it is usually in my hand most of the time.....