Thanks for reaching out. Blocking a contact may not necessarily impact ads. However, if you see multiple ads of a same company, you can always share a feedback using our AdWords feedback form. Here's how: http://yt.be/help/SoeD . Hope this helps.
@YouTube i blocked an account because i was getting spammed by its ads but im still getting the ads. what can i do to stop it???? @TeamYouTube
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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