I've noticed a crack in my Divacup, that I have only used for 6 cycles. I only use water to wash it while I'm using it, with a 10 min boil at the end of each period. I looked through some other entries where this happened, but it took 2-3 years for others to notice a crack. Could I have a defective cup? Should I call the company about it? It's not leaking or anything, so I'm not sure if I should be worried or not. Thanks!