Other than playing on the Saturday Playtests, the ability to test during the weekdays.
I Would Agree And The Official Vesteria Group On Roblox Does Keep Gaining Members Without Any Official Explanation On How To Get Into It.
currently, there is no official way of testing the game (except the Saturday tests)
but I have seen some QA testers both: in-game and on the group
(all of them were lvl 30)
that would be hard to get in three weeks.