that type of thing, clutch and brakes, are under an extremely limited warranty and on a case-by-case basis. i know GM usually only warranty's a clutch for about 10k miles and thats if there are no signs of abuse and absolutely no modifications to the vehicle. if you tow your car car to the dealership they WILL NOT warranty it and they know you will prettymuch have to pay them to fix it cause what else are you going to do? drive it somewhere else? that being said, i would talk to the shop service manager and try to make some kind of deal like "this part shouldnt fail this early, if ou arent going to warranty it, can you at least give me a deal on the install because we both know it shouldnt fail this fast,regardless of driving style" Honesty will get you a long way... i had a problem with my navi unit in my civic (kept scratching DVD's) and i straight up told them that when i get on the car real hard, the axle tramp during wheelspin shakes the dash violently and i think that was making the disk flex enough to contact the internal parts of the reader.... the guy thanked me for the good information and said that i should be able to drive my car as i please... its an SI... i obviously should be able to floor it without worrying about my navi unit going out... meanwhile 3 units later, Honda finally came out with a new unit with some sort of suspension inside that solved the issue, and i never paid a dime. so instead of lying and maybe getting shafted i got great service.
the other thing you may want to ask is if you could buy your own clutch and have them install it... you obviously are rough on the clutch for it to go out so quickly so a factory unit may not be adequate for you. look into an aftermarket clutch kit, but always use a genuine Honda throwout bearing!!!!!