I am real sorry to hear about your account.
Trion and xl really need to get there act together.

I would start here
http://www.bbb.org/greater-san-francisco...-city-ca-373637
Only post actual details and no insults or conjecture. They are not bbb accredited but they do seem to respond to it.

Try to find contact info from here and send a few emails asking for help. Most of the time the higher ups are insulated from finding out issues like this.
https://www.linkedin.com/company/trion-worlds-inc.

Maybe make a temporary account on Trion and make post in the forums. Again no inflammatory language just the facts. Big business are testing the waters with suing people over flaming there company or products on websites. Next if no response then goto facebook twitter etc.

As a IT consultant, Just curios, how secure was your password?
Please dont respond to this. Just things to consider and a warning to everyone else.
how long was your password more then 8
do you have !@#$%^&()` mixed in somewhere
do you have capitals and numbers.
how secure is the password to your email account.
AOL and Yahoo, hotmail are the 3 most hacked email systems. Yahoo is not secure at all.

Have you run Anti-malware programs such as malwarebytes, adwcleaner, rkill, tdsskiller, hitman. you can find these programs on www.bleepingcomputer.com downloads section. Just to make sure any addon from another game isnt at fault. More then likely im guessing your email got hacked and that would be the only way for them to really get your account.

I have 3 8x8 farms, one 16x16, smelter workbench,
harpoon clipper, Farm cart,
3x Small cottage plan, thatched farm house plan, workstation.
Tripwire, Razorwire, Hotwires, Firewire

https://robertsspaceindustries.com/citizens/RazorWire