Stuck in queue number and re-open game it tells me my account is locked

As many other players have also experienced this, I always get stuck in queue number after a while, and when I click cancel button the game will be terminated saying cannot connect ot server. But this time is different, when I re-open game it tells me it detected duplicate login and locked my account. After that I have to wait for the locked time and re-enter the queue again.

I have run into this for 3 times now. This is totally unacceptable, and this is definitely a sev2 level issue OK? What would you thin if you are the player?