Apologies for that negative experience. Sometimes the Steem API does have issues, making all bots miss upvotes. It does not happen often, but when it does, the upvote buyer has to contact the bot operator(s) as soon as they can in order to rectify the situation. The bot operator then has to manually find the transaction(s) in question and confirm the amount(s), and sometimes it is more complicated if a lot of time passes since the upvote bid was sent since steemd.com is a great tool, but not very user friendly when trying to search for a transaction that happened a while ago.
The Steem blockchain is transparent and everyone can see the transactions. Screenshots are not required.
We have went ahead and upvoted your comment to compensate you.
Best Regards and Steem on! :)
I thank you for your sympathy, this was the first time that I was compensated for losses. And thank you for the help, that's why I decided to write here, because despite the fact that in the ad banner, with I first open this site, big, fast and easy money was promised without any investment, but I was already tired of losing money is due to the fact that the bots do not vote or vote incorrectly.
Regards, Anastasia