Having same issue, account got locked 24, because my internet glitched and had 3 login windows open. Am receiving OTP just fine but now unable to login for next 24 hours. I have reset password 2-3 times successfully but still get the 24 hour block message after OTP.
Called in to see if they can override it, was informed there is nothing they can do about it. I just have to wait 24 hours. Pretty sure will be losing the award seats in the next 24 hours.