Let me try to answer thisone....be patientwith this crappy computer......
Exchange Market is internet sales through Rohan website.You need real money or credit to purchase items there.Inaddition,you must join the exchange by buying a membership.Once you have themembership, you purchase RohanPoints (RP's) through one of the options offered:PayPal, and there areseveral others thatmake you put up either your bank account or a credit card to back your purchases.
Once you are a memberof the exchange,you can purchase items and transfer them to your rohan chars. You are making your purchases directly from other Rohan players here. You can also send items from the game (via the little chest on the right side of your screen) to sell for RP's to others. You can buy crones,items, or even chars on the exchange market. Be advised you need to makesure all your transactions are "server" specific. That is,you want everything you do to occur on Marea server.
Item Mall sales are fromYNK. You are purchasing directly from their on-line store.The xp scrolls, the permanent mounts, the costumes,etc. can all be purchased using RP's. The same RP purchase instructions as above for the ExchangeMarket. You do not need to be a member of the exchange market to purchase from the Item Mall. The items you purchase will be found in the little itemmall chest on the right side of your screen.
Tip:if you purchase items while in-game with your account,they may not be available until you re-log,unless you leave something in the chest at all times. I try to keep a firework(only 1rp) in the chest at all times, so i can access my purchases instantly.
The only place that you can use "crones" to purchase items is in-game. Either from other players, npc's, or consignment. Many of us have trouble using consignment. Sometimes,if you have trouble usingconsignment in one town, another town works better. Icannot purchase from consignment in any town without using a "merchant's soul lucky". Don't know why,but that's the way it works for me.
Hope this helps.