The face value of a RR ticket is zero. The Customer should have received a voucher for a grand total of $100.
Years ago we used to give a courtesy face value of $50, for a total of $150. This was unwritten. To be consistent, it has been emphasized that we should no longer do that. I think they want to avoid a lets-make-a-deal game and be fair with everyone. (I'm not tryng to say zero is/isn't fair.)
High on Luv is an official rep and I am not. She may have more info regarding this.