If you reported them, they will take note but won't respond. Their action will not be immediate either.

They report to us on the lodestone how many bots they banned each week. Here is the latest report:

https://eu.finalfantasyxiv.com/lodes...4ce1b1421efe1a

Time Period: May 16, 2019 to May 22, 2019

・Participation in RMT/prohibited activities
　・Accounts terminated: 4,930
　・Accounts temporarily suspended: 9
・Botting activity (Using any number of third party tools that allow for automation)
　・Accounts terminated: 2
　・Accounts temporarily suspended: 13
・RMT advertising
　・Accounts terminated: 1,336
There are so many of them that you would never notice the above had happened and they most likely don't go to any great legal lengths to stop them making new accounts, but I really wouldn't know.