Upvote help on Zon

Hello. I'm a writer who has gotten some help before from BHW, and I'm back to see if anyone knows about or can help with upvotes on Am***n. My first book has been hit by a troll and his friends, and I'm trying to get some other reviews to show up first instead of his which has 35+ downvotes. Anyone have any suggestions or accounts that can help me upvote a more positive review?

Thanks.

cat