Please refrain from spamming.
I'll point out a few concerns that some members are having.
1) He can always out-source jobs to higher ranked people, given the higher ranked jobs come in.
2) While buying a boost, there is always a chance that your account can get banned, since it's against the rules. They're not trying to cover for scripting or cheating, they're trying to cover for elo boosting bans that may occur.
3) Self-entitled claims of being #1 will always be made, so just ignore it if you don't agree with the statement.
Regardless, good luck with your services.
Edit:
If the customer is really concerned about the "we're not responsible for bans" part of their TOS, try to negotiate and impliment an addition of your own TOS which states "The booster will not script / hack / cheat in any way". If they agree, and you get banned, you can open a ticket through Riot and they'll tell you why you were banned. If you were banned for elo boosting, they're not responsible. If you're banned for scripting / cheating, then they'd be responsible because they broke the TOS