PERHAPS.
1. Do you still have the receipt?
2. If not, can you prove you've owned it less than a year?
3. Even though it cracked away from the area being plugged, the plug does void the warranty.
4. SOMETIMES, they will cover them anyway.
Like charlest said, go through the person you bought it from first and give them the chance to make it right for you. If they can't, then go up the ladder and see what happens.
Good luck.
_______________________________________________________________________
"The difference between stupidity and genius is that genius has its limits."
Albert Einstein
_______________________________________________________________________