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Yep, currently @tipu max upvote is around $30. But you can send even 1000 SBD at once, around 20 will be used for the upvote (if the post is new) ans the rest will be auto refunded. Cheers!

One more question, I am sorry to bother,:
I did win a: quote: How do I see who's upvote I received?
Does it run for one day or longer?

Congratulations! By using @tipU service today you have won @steembasicincome share from @tipU :) From now on @steembasicincome (or one of its accounts) will upvote your posts :)

@tipU gives 2 @steembasicincome shares daily to random service users.

Please check @steembasicincome blog for more info :)
It's active for as long as STEEM blockchain is working (lifetime).
You can check your upvotes here: https://steemblockexplorer.com/@davedavis91

thanks for all the info