Https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/How%20do%20i%20dispute%20a%20coinbase%20transaction.pdf https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/How%20do%20i%20dispute%20a%20coinbase%20transaction.pdf