Colors fading for my royal purple

after a weeks of usage... normal use etc etc. my royal purple color fades!!! what a disappointment! I tried emailing element case but this is what they came back to me :
"Thank you for contacting Element Case.
Improper care for the case will deteriorate the coating. The aluminum portion of the case is anodized, dyed and is run through a final seal/coating process. The anodic oxide coating and the nickel acetate seal bonds the dye on your case and is very tough and resistant. However, the aluminum is soft and the hard coating can only resist as much.
Unnoticeable daily activities may lessen the life of the hard oxide coating:
1. Placing the iPhone inside the pocket - when the case rubs consistently with the fabric on your jeans/pants, the friction causes the coating to weaken.
2. Placing the iPhone in your pocket with your keys or loose change - the constant hitting of hard objects on the case may weaken the coating.
I hope this helps. "
I'm like wth... my pockets are always empty just for my phone, and i always use air compressor to blow away dust from my pocket to make sure not a single speck of dust stays in my pocket. Yet the color still fades.
I have to say i expect the quality of this case should be higher than what i pay, because I'm from malaysia and the price i'm paying after converting from US dollars is sky high.
How's everyone Else's royal purple holding up?