Ezrentacar changing driver name

[clearyds]

Hi everyone,
I have booked a car with ez for January. No other company came close to their pricing. My problem is I booked it under my name thinking spouses were automatically included at no cost. I realize this is not the case! Will they let me changed the driver on the reservation? I tried to do that online but it just put me to make a new booking. Will I just need to keep checking hoping to find the same price again? Has anyone changed the drivers name with them?
Thank you!