An Air New Zealand customer charged more than $100 to book flights over the phone says the airline's fees unfairly penalise the elderly.
The 84-year-old booked for herself and a friend to fly from Auckland to New Plymouth and then from Taupo back to Auckland.
The Grab-a-Seat fares were $309.60 - but the Aucklander ended up paying $532.
The increase included two "service fees" totalling $104, two credit card fees totalling $13.92, $69 in GST and $34 for travel insurance.
The woman, who asked not to be named, said she felt "ambushed" by the fees, and was particularly angry that Air New Zealand charged her $104 to book over the phone.