Maryland Code, Public Utilities § 8-405

(1) a customer's telephone company;

(2) a customer's reseller;

(3) a customer's telecommunications service options; or

(4) the person who bills the customer or the customer's billing arrangement.

(1) to the customer, the customer's previously selected telephone company or reseller, or both, as determined by the Commission, for all intrastate long distance charges, interstate long distance charges, local exchange service charges, provider switching fees, the value of any premiums to which the customer would have been entitled, and other relevant charges incurred by the customer in the first 30 days of the unauthorized change; and

(2) to the customer's local exchange provider for the change fees for the unauthorized change and reinstating the customer to the original telephone company or reseller.