Ok, I think the part where you talked about trading a silver piece might be confusing me...
If you are trying to warp from bastok/windurst/sandoria/jeuno to aht urghan whitegate
you don't trade a silver piece.. you trade 300 gil to the npc to warp
If you are trying to warp from aht urghan whitegate to bastok/windurst/sandoria...
you need to warp to jeuno from aht urhgan whitegate 3 times first as a prerequisite.. trading a silver piece each time
After you have warped to jeuno 3 times from aht urhgan whitegate.. the option to warp to bastok/sandoria./windurst appears.





