A few questions: Were you online when you voted? Did you enter your user name correctly? Was your inventory full at the time you voted? Did you receive the ecodollars, or nothing at all?
If you need further assistance after answering greek's questions you may consider speaking with the staff on the voting websites, or posting a bug report there as well.
rainbowmaster12 Tagging you so you may respond to the questions to help you with your voting problem.
I just voted 1 minute ago and everything seemed to be fine. I got all the ecodollars and 6 nether stars.
Nope It wasn't full, and my name was spelt correctly. Yes, I was online, and I've talked to glack about it before too.
I have not had this problem at all when voting. Worst I have had was a voting site down for a short time when I wanted to vote. Do what Mardigan said if this happens again for you.