Upon right-click on the Contract, Iauld Atiqa displays an array of choices. Usually this is not hard to understand. However, with RoS still in development, some components are unfinished. This is one of them. All of the options are expressed as number sequences, no alpha descriptions. I went to Froglok mercenary merchant (one who offers all four classes) to confirm the order of things. There I see
Type --Apprentice --Journeyman Subtype --Tier I - Tank --Tier I - Healer --Tier I - Damage Caster --Tier I - Melee Damage and the same through to --Tier V - Melee Damage
I made my selection using this pattern. I wanted the Journeyman Tier V - Melee Damage. I received Journeyman Tier V - Damage Caster -- I think. Most of the descriptors are still numeric even in the mercenary window, info tab. Also, in the selection list, in the slot where this mercenary is one sees an X in the left margin and blank space filling the rest of that line. Maybe the Melee Damage mercenary is in third position rather than fourth position. I think I will wait until sometime in December to obtain my rogue.
"Spell Effect activates your contract with Iauld Atiqa in Plane of Knowledge and will allow you to finish up the paperwork an hire the mercenary." This quotation is from the contract itself.
Iauld Atiqa does not accept the paper as a turn in. However, once the Contract is right-clicked in inventory the contract disappears and an array of options opens.