Springs shouldn't be covered by any kind of warranty. Just as beaters and drum sticks aren't covered. And they're cheap enough that you should've had spares. My list of spares I keep with the kit are beaters, hi-hat clutches, springs and S-hooks, snare wire - make up a little toolbox with those parts and keep it in the car everytime you go out for a gig.
I doubt there's anything wrong with the pedal.
I even take a spare bass drum head now. Broke off the beater an stuck the rod through the head. Lots of duct tape finished that gig, but sounded horrible. Extra parts are really cheap insurance.
8 x 11 clear plastic laminating sheets (the kind w/ a backing sheet of paper w/ sticky stuff on one side of the laminating sheets) is a great quick fix that sounds better than tape. I keep a sheet at arms reach. If I tear a head, I peel off the backing sheet and slap the sticky side on the tear. It the tear is big I'll use another sheet or 2. I'm up and running in about 30 seconds. Yes it's not the sound you get w/ an unbroken head but it's a great fix nonetheless that will get you through the night, or until you can change heads.
I am surprised to notice that bass drum heads break for so many people.
I have never gone through a bass drum head.
I use two ply heads for hard play.
I always use a protector.
I hardly ever replace my bass drum heads. I keep them for years.