would be the lug nut torque spec as that is more or less the cause of the warped rotor. Next i would go to the dealer and see what they are willing to do. If you do not get a satisfactory answer go the next step up to the manufacture see what they are willing to do. Last resort would be doing a brake job your self this will more than likely void the warranty. It may well be the master cylinder and the calipers causing the problems. It may also be driving style too.
My Ram goes through rotors and pads at the same time due to some proportioning and inferior factory parts.(my driving style is not helpful either) Dodge is more than willing to pay for the rotors so, when they offered the rotors I asked the service manager if we could use a better quality rotor from a different company. I ended up using Brembo slotted rotors big improvement on wear, pads remained stock. I also check the lug nuts torque before leaving the shop if they are too tight I have then pull the wheels and test the rotors for warpping immediately. I will not stand for sloppy work, I grew up hanging around with my father in garages. I my self was a wrench on cars for many a year on the side and also I professional bicycle mechanic, I know what goes into a job.