Jeannie tells Mrs. Bellows that Tony has never bought her any clothes. But in season 1 The Americanization of Jeannie (1965) she bought multiple clothes she charged to Tony, including a dress she put on for him. And in season 2 The Mod Party (1967) Tony gives Jeannie his credit card and tells her to go to the store and buy a mod dress, which she does. So at least 2 times, Tony has bought her clothes.
Jeannie says that without her powers, she was unable to get any other clothes to wear. But in My Turned-On Master (1967), she didn't have her powers (she transferred them to Tony for the day), also without thought or planning, yet had a dress to wear when she came to NASA to see him.
Jeannie specifically states in that other episode that she had to buy the dress in town.
Jeannie specifically states in that other episode that she had to buy the dress in town.