With how many people have chosen the cash option, there's essentially no chance of getting the full $125. They have a fixed pot of money that will be divided against anyone claiming cash.
That said, I don't really value "credit monitoring" services. This is a service that only needs to exist because companies such as Equifax are terrible at securing their data, pretty much every SSN is available to someone looking hard enough, and yet we still treat these numbers as sufficient identification to open credit cards. Credit Karma will do this for you for free, so I'll take the small amount of cash over that any day.