Winfrey, I posted about this a couple of months ago at Mystery Manor. You had to "opt in" in order to keep your 15 GB of free storage on One Drive. It was kind of stinky for them to sort of promise things like unlimited storage in enterprise accounts and then just because some bad actors were uploading gazillions of GB of data, they lowered it for all of us.
I got an email last week that since I had opted in, my 15 GB of storage remains intact.