Swiss Casino replied first:
Thank you for choosing Swiss Casino.
I would like to inform you that your account was not locked due to your many failed withdraw attempts.
Also I would like to inform you that Kiwi Casino is also affiliated with us. For you to unlock your accounts you would have to call the respected casino security department and they can advise you on how to unlock your accounts.
The reply from Casino Las Vegas arrived this morning. Not exactly on point (I didn't request another bonus), but very enlightening:
My violation? Ending up +$210 on their network after meeting their WR, I guess. From last Wednesday's post:
I started at Casino King, and on June 12, lost $100. I then played at Casino Las Vegas, and ended up +$303, with a balance of $533 ($303 + $100 deposit + $130 bonus). ... I should have waited to confirm, but instead played another $240, ending up ahead another $7.
At least I got paid.