You can vote every 24h after you voted the lst time.
4 votes, 15gold per vote equals in 60g per day.

All vendor items (charsi & co) should cost 2g per item. You can link your forum acc (which youre votibg with) to your ingame acc in the settings (look top right).

After lining your accs this way you have access to your website gold ingame.

The only vendor that sells better items for more gold is Hadriel (act1 & 4). Thats how the server financies work, because obviously you can also buy gold for real money