The elastic has gone in ALL of my CT (I had 15) 4 have been replaced, no questions asked.
I have 8 new ones being sent out to me, still waiting tho.
I found them very helpful but slow to respond to my complaint, I had to send a few emails.
As far as I'm concerned, CT are gorgeous nappies but they really need to work on the quality. Mine barely lasted 5 moths!!! Not good....