On the phone, class and sest werr confirmed. Aftet thr call things seem to have changed. Thats correct. The bargain $100 wqs offered since there was a fare difference on thr dqte change for the sqme class. At least that wws what was explained. So during tebooking she was downgraded without consent. Dont think there was any misunderstanding and no comversatioms about fare difference being exoensive occured. Have sent a note for customer service to review call logs so hoping they can correct this.