I sent you 0.5 SBD about 11 days ago to upvote this link:
https://steemit.com/discussion/@arslan786/why-my-steem-power-dropped#@stimialiti/re-timcliff-re-stimialiti-re-timcliff-re-arslan786-re-iliasdiamantis-re-arslan786-why-my-steem-power-dropped-20171025t021441962z

Then I got a refund for 'bid too low'
Then I sent again in hopes of the bid being high enough in the next round, but did not get a refund for it, nor a vote.
You can check for the link yourself in your wallet and in your voting records.