Please check if you added those bots to the useragent blacklist and save it?
Understand that removing your links is NOT INSTANT.
They are just like any search engine, they refresh their DB on their OWN schedule. We have no control of their DB or its results.
So if you are still concerned, then test your site against the refer of that certain site?
Change your browser user agent to whatever you want blocked and see if it gets the code you chose.
You can do this by downloading plugin for your browser (Chrome - User-Agent Swithcer) and then configure plugin.
If you get the code, then they get the same code.
If you don't then deactivate all plugins and change to default theme and test. Then reactivate and test a new load one at a time until it breaks again.
If you require more information, send us a ticket!
And if this solution helped you with your question or problem, please give it "thumb up"!