If you are disqualified from your qualification account, you can reset the account. This resets the account value, the trailing drawdown account value, the daily consistency rate, and the number of trading days you have participated in.
Note that resets do not restart the date for the billing cycle on qualification accounts. It may make more sense to simply start a new account rather than resetting if you have a limited number of days before the next billing. If you are disqualified from the qualification and have 10 trading days or less before the next monthly billing, you should simply cancel the account and start a new one rather than resetting.