Yes, you can dispute a Coinbase transaction, but only under certain conditions １ー８６６ー(７１９)ー５７１４ . You Can Dispute a Transaction if Someone accessed your Coinbase account without your permission and made a transaction １ー８６６ー(７１９)ー５７１４ . To Dispute a Transaction on Coinbase Go to the Coinbase Help Center １ー８６６ー(７１９)ー５７１４ .