hmm , the fact that you vote via a proxy site doent mean that your main ip ( with this you logging in L2 ) had vote again !
example :
ip_main ---> voted before 12+ hours
ip_proxy---> voted before some minutes
When you log in the game , the client will use your main ip and not the proxy ones !
Thats why it doesnt work at all !
What you need to do ?
Use a vpn and change your whole ip ;) this should work 100 % !