Didn't gain 8K NX

Hello , 8 hours and 13 mins from now i voted and now i check if i got the 8k nx but it's still the same
this never happend to me so idk how it happend
my ign's are :
Angel
TLger.

 

Bump
and i forgot to add date vote was 12/11/2013 time : 21:59 server time
and my time was : 23:59

 

Edit : i voted 4 mins ago and it worked but it gave me extra 4k nx is that a bug?