Hi, a few questions since i'm banned..

1) If i get a new key can i still keep my compleleted version of single player or is it a clean install?

2) Where can i get a cheap legit key for the uk

3) Why do IW Suck so much!!! They banned me for tamporing with my data files as i was trying to reset my self to level 1. Apparntly the new update does this from now on..

4) If i can't get a key, How good are the cracks?