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All Official Filings (excluding customer disputes - see 'File a dispute' below) should be addressed to David Collins, Executive Secretary at the address below:

William Donald Schaefer Tower
6 St. Paul St., 16th Floor
Baltimore, MD 21202

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(410) 767-8000
MD Toll Free: 1-800-492-0474
TTY Users call via Maryland Relay 1-800-201-7165
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