Unprofessional Service

My mom booked a ticket in 2020 and due to Covid did not fly, she was told her funds would be kept, which they have been kept, the tickets have increased in price by almost triple since 2020, we have approached flight center and advise that due to my mom being a pensioner she cannot afford the difference in ticket price, flight center has said we can do a name change to sell the ticket to another person but the cut off is 31.03.2023, my mom has beeb in to see Lizelle at the Farramere branch and every time she goes in there is a different excuse, she said she would advertise it to all the branches, when my mom was in on Yesterday there was another excuse of why she has not found a name change, Lizelle is very unprofessional. She said she would advertise it to all the branches, and still no name change, i find it very hard to believe that no one is flying to OZ or New Zeeland, people are leaving SA every day. When you log tickets with Flight Centre Head Office, they also now done come back to me, flight center is so unhelpful.