Money making scheme

My wife booked a ticket for myself and my son (codeshare flight). There was an error with one letter of my son’s name and she called them to ask them to change it. They firstly charged her 500AED to change one letter. Later they informed her they can’t do it and that it’s a non refundable ticket. Both SAA and Emirates were willing to assist up until they saw the ticket was booked through a travel agency. BudgetAir just refuses to assist to make one single change. This is just them wanting to make more money. We have to buy a new ticket because they don’t want to assist. Be careful of these travel agencies.