Lexol is a brand name ? Which lexol product did you use? The cleaner or the combination product (which I do not recommend)
Do take care , applying conditioner ( if you used a conditioner which I don’t know ) as you found out worn areas can and do tend to absorb it and become darker looking .
But this thread is not about giving advice on how to DIY restore but rather if a bag can be restored. I did run such a thread for over a decade here on TPF however this is not that thread. Not to be unpleasant, I just wanted to steer us back to the topic. Let me know if the worn areas and darkened spot have lightened up after a day or so.best of luck it’s a beautiful bag. I would allow only a trust professional to do colorwork only on corners knowing what was mentioned in the prior post ,perfectly matching two tone effect will most likely not be accomplished. I hope you’ll enjoy your beautiful bag. It’s very special and rare .
All the best, doc