Answer
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Work Step by Step
You should contact the billing department or customer service to clarify the situation and ensure there are no errors in the billing system. If you receive a second notice of 0.00USD, it's likely a mistake that needs to be addressed promptly to avoid any confusion or potential issues with your account. If you receive a third notice threatening legal action over a $0.00 bill, it's advisable to contact a supervisor or manager in the billing department to resolve the issue, as legal action over such a small amount would be highly unusual and likely a misunderstanding.