Gil for Gold quest cannot complete

Just like the title says. Cannot complete gil for gold quest with NPC Mamane.
Im not sure if its just me or if this has already been posted but I figured I would let em know.

Thanks

Since you don't provide much information I'm just going to guess that you can't press the complete button.
If that's the case you have to select one of the rewards where it says "option".

I feel like the biggest idiot now. Thanks for not bashing the heck out of me over this one and thanks for your help.