You need to explain that you are following the instructions on D-4DC. If you could speak with their manager or someone in payroll, that would be great. If you have to file the D-4DC, you can put 100 exemptions to prevent tax and turn in the correct D-4A with it. Hopefully, it will go to somebody who knows the rules .Once you are at work, you can get things straightened out.
References:
The D-4 DC Withholding Allowance Certificate states: If you are not liable for DC income taxes because you are a nonresident or military spouse, you must file Form D-4A, Certificate of Nonresidence in the District of Columbia, with your employer
Which states have reciprocal agreements? - TurboTax Support work only in District of Columbia, file D-4A
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"