I don't know if this is legit or not but I have gotten this notice in my wallet with a donation/transfer of .001 sbd into my account twice now with this promotion tag attached. I haven't used the service because I don't know if something like this is trustworthy.

Hello Friend , Promote your new post . Your post will be more popular and you will find new friends . We provide "Resteem upvote and promo " service . Resteem to 14.000+ Follower , Min 45+ Upvote , Hottopic Upvote . Send 1 SBD or 2 STEEM to @hottopic ( URL as memo ) Service Active