[Question] Vote4NX

Errr.... I was wondering if the system has an automate to tell voters if they have voted in the last 6 hours.... Earlier I went to vote and realized after I click "vote" that it may not have been 6 hours yet (voted around 6:30am this morning and it's still barely 12pm) but it still grant me NX. Can I request a check to remove the vote point in case I really did make a mistake?

Edit: Forgot to add this in>> IGN: Seiya

Yeah you can vote ONCE every 6hours.

votefornx?
but i only get vope point but no nx at all..