Download chatgpt chat history

It would be helpful to allow download of chat history (entire conversation: prompt and results) for our own records. at the same time i know that that everyone’s chat history is being used to train chatgpt which is allowing improved version accessibility. Perhaps this is the reason that no one has access to their chat history? i would be willing to sign NDA in exchange for monthly compensation of $20k/month including the ability to buy/sell without any rfid implant with no expiration.