I have vouches on ePvP:
http://www.elitepvpers.com/forum/league-legends-trading/3085330-elo-boosting-service-up-platinum-league-all-eu-servers-fast-cheap-reliable.html
I can also verify that I'm the same guy you can see in the thread above.
And i just saw your profile banner: i work for...
Hi,
my name is Geicher and I've been working in this business for a long time now, for example on ePvP. http://www.elitepvpers.com/forum/league-legends-trading/3085330-elo-boosting-service-up-platinum-league-all-eu-servers-fast-cheap-reliable.html
Now I'm also trying to offer you my service...
Hi,
im looking for someone who can play my promotion series to Diamond V on the russian server.
I haven't played a single game in the series yet, so you only need to win 3 out of the 5 possible games.
The cheapest & most trusted offer wins :)