Darkrain it is not their job to tell you that. They can ONLY say they can't help you.
And based on what you said, you bought the same addon twice. unless you got the moogle one then ACP.

Also in that situation you ask for a manager. I kinda find it funnt though cuz... world transfer and the addons are account basis you can only buy them under that account your on. the only way your wifes account woulda been billed if she did the same. Sorry i kinda don;t believe your secord story since its almost physically impossible to get charged on 2 different accounts. Since the account needs to have had purchased it.