thats acculy not true cuz if you used your box lets say till lvl 40 you louse that first 4 boxes big loss there
What are you on mate ?
If you've played on Telhamhill, there won't be any kind of transfer. No box no nothing.
You only get rewards if you're ranked. The only options available would be start over in Universalis and claim the reward.
If you start over in Universalis, you'll get the level boxes. You have to level up again and make your gear all over again. So, the only loss would be your time spent farming in Telhamhill if you didn't even participated in the PvP event. No transfers and ain't getting no rewards too.