i sent the gw to the address listed on my CR... i believe customer satisfaction or relations team handled it... i tried calling BofA via phone and they were super unhelpful saying it is against the law and we can;t do that and such.. so i tried GW....
bofa responded to my letter 7 days after however i received it much later.... and chase took a lil bit but came through...
also to mention my EQ score went up 13 points =)