I've made an Emblem Vendor that exchanges badges/emblems upward. It works, but does not show the cost for it.
Example, right click on the npc, the vendor window opens up and shows the items, (EoH, EoV, EoC, EoT and EoT), but does not show what they cost, but clicking on them works (provided you have the required amount to exchange). I've edited the ItemExtendedCost.dbc accordingly for the badge to emblem, or emblem to emblem ratios.
Any ideas on what I can do to show the actual cost?