Yes there is, im 10th prestige lvl 70. The guy that scammed you just wanted to get his kill death ratio up. Theres a website called se7ensins.com where you can look into th forums and try to find legit ones.
I went to one where I leveld to 70 and then prestiged, and so on and so on. If they say you gota pay mp for it, its most likely a hack. I got mine done for free.