Its same cos I asked google if my addresss on account can be changed to my cousins address who was banned from adsense & they banned me for association with banned a/c. The only diff here is this guy does not have an adsense account but hes applying for an account with a black listed adds (i.e his bros adds). I have emailed google & told them that hes my cousin so why shld i suffer for him but they never gave me my account back.
Most likely they are viewing this as an attempt by your cousin to gain access to the program again. They honestly are taking precautions most likely because they may think you are the same person and do not want to take a chance on this.
I have to agree with Devin. If you had read the program policies and TOS you would see right in there that you cannot ask for this anyways.
Dude read the thread properly. This person has two blogs (mayb not at blogspot) He was accepted and then later banned for and as Devin said earlier he has shot himself in the foot. Never ever mention banned ppl or addresses to google unless and until you are fed up of your adsense account