The problem is most of the botnet zombies are in places with very little rule of law like eastern europe/russia/south america/china. It is an exercise in futility and the richest customers just opt to just spend money on more protection than shutting down the zombies.
If the zombie is in the US, hosts like Google or Amazon will take 1+ month to respond.
If the zombie is in the US, hosts like Google or Amazon will take 1+ month to respond.