slimequeen scepter island islands

If the buyer's economic level is below lvl 25, the goods will be given via trade (you have to wait for the seller to come on)
If the buyer's economic level is above lvl 25, the goods will be given via vending (at any time, you don't have to wait for the seller to come on)
If you are 1 hour late + you can request a bonus (as long as it doesn't exceed the items purchased)