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I use bidbot for that.
You can see details at https://steembottracker.com/
There are so many bots giving upvote by taking some steem/SBD.

OK Thanks For Your reply..
By this way we pramote our blogs are fair in steemit??

I think there is currently no bad. Most of the steemians using this buying vote service.
Ethically it may wrong but now it is working.

ok thank you. this information is precious for me.
thanks a lot again..

Hows this bidding works, kindly send me any tutorial link.
I will be very grateful to you. I need to earn to came our of my bad economical condition.

I am also facing the same problem...ha haa
Have a look here