Haven't had this happen but I have a couple of questions since you are a user...
Does yours have gaps on the sides or back near the hinge points?
Is the little nub area that broke cut at an angle?
I only ask because I really like the case and actually bought one last week that I promptly took back right after buying because it had many gaps and the top clasp was cut at an odd angle, it looked like it should have been straight but it wasn't.
Thanks.