Waiving Overmileage Charges

I am currently 15K miles over on my lexus GX with my lease ending next month. I am considering going with a RX. I was wondering if anyone has had
an experience with a portion of their overmileage being waived when leasing again from the same company. I had called lexus financial and asked them if I lease another lexus if they will waive a portion of my over mileage. They said most likely they would be couldn’t guarantee anything