Doesn't Arkpool have a 5 Ark payout threshold? If it still does, then based on current rates, with 249 Ark you'd be getting ~0.048 Ark/day, or roughly 1 Ark every 21 days, so ~105 days until you reach the 5 Ark threshold. Which means you just have to keep waiting since it's only been just over half that amount of time since you voted.
If you want to speed things up, your options are to switch to a pool that pays out better (you have many options: http://calculator.reconnico.com/) or buy more Ark. Probably no point in switching until you receive your first payout though. And, if/when you do switch, remember that it's cheaper to send your Ark to a new address (0.1 Ark) than it is to un-vote from your current address (1 Ark).
Thank you for taking time to answer my question. It now makes sense.