I asked this here and contacted as suggested without luck agree that it's hard to find a good TA who is available/willing/able to assist. I then contacted a few I found online that had good reviews but many of them charge you an upfront fee of $100. I guess their costs had gone up? I ended up checking Flight Centre's website for flights to Argentina and the prices listed were the same as Latam's (when converting to AUD), Latam's website didn't accept my cc as their system crashes with international ccs, so had to go to a TA, but looked at all the fares myself before contacting them. Went twice to see Flight Centre. Agent is local and seemed competent (she had advice re layover at Syd airport which I wouldn't have considered and could have ended badly for me). Second time I went, I had an idea of what I wanted to do as leaving from Bne resulted in a shorter trip, but returning to the Gold Coast was also a better option for us and you can't organise that without a TA, so took all my options to her and she put it together. Perhaps it's just my experience only, but it seems that as a customer, you're the most invested (obviously) in what you want, especially if you are experienced or can't compromise on certain things, and you need to do your homework first, otherwise they're so busy that they cannot look at the best options for you. I hope I am wrong and someone can recommend a good and available TA as it's always very useful to have the contact details of someone who's good at their job!