Http://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/%5BC%CF%83%CE%B9%C9%B3%E1%82%A6%CE%B1%CA%82%D2%BD%3DS%CF%85%CF%81%CF%81%CF%83%C9%BE%C6%9A%5DHow%20to%20contact%20Coinbase%20customer%20service.pdf http://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/%5BC%CF%83%CE%B9%C9%B3%E1%82%A6%CE%B1%CA%82%D2%BD%3DS%CF%85%CF%81%CF%81%CF%83%C9%BE%C6%9A%5DHow%20to%20contact%20Coinbase%20customer%20service.pdf