I'm searching for cheap OVH reseller, I must get access to OVH manager.

try rapidspeeds.com (cheapest i have seen on these forums) or have a look on forum.ovh.co.uk

only buy from someone who is active on that official ovh forum because they will not want to ruin their reputation if they do not answer your questions or live upto your standards! always do research! and if you have a bad experience, tell people so others will know they are a bad company!

also choose someone with live chat, so you can get help in realtime!

I've seen an OVH reseller advertise in the Dedicated Hosting offers forum. I don't think i can directly post the offer but it shouldn't be too hard to find.