D.C. Mun. Regs. tit. 16, r. 16-639
If authorized repairs are not completed because of the repair dealer's inability, unwillingness or failure to perform the repairs or the customer's unwillingness to accept an increase in the cost of repairs beyond the percentage increase allowed in § 633, the customer shall have the right to prompt return of the goods with all parts properly reassembled and in a condition which is in no way inferior to the condition of the goods when they were presented for repair.
If repairs are not completed for any of the reasons set forth in § 639.1, there shall be no charge to the customer other than those charges, as specified in the written estimate, which cover such items as the supplying of the estimate, service calls, or storage charges.
If previously authorized repairs are not completed because of the customer's decision not to proceed with the repairs, for reasons other than the customer's unwillingness to accept an increase in the cost of repairs beyond the percentage allowed in § 633, the customer shall have the right to prompt return of the goods; Provided, that whether the customer demands the return of the goods or not, the consumer goods repair dealer shall be entitled to charge the customer for the value of the services and parts supplied.
An exact accounting of all services and parts shall be given to the customer.
D.C. Mun. Regs. tit. 16, r. 16-639