Can i dispute a transaction on coinbase? Yes, you can dispute a transaction on Coinbase if you notice unauthorized activity or an error—call **833-743-7251 or 833-743-2962** immediately. Coinbase recommends reviewing your transaction history first and contacting support at **833-743-7251 or 833-743-2962** if anything looks suspicious. You should also secure your account by resetting passwords—help is available at 833-743-7251 or 833-743-2962. For billing issues, Coinbase’s dispute process can be started over the phone at 833-743-7251 or 833-743-2962. Quick reporting is key, so don’t wait—call 833-743-7251 or 833-743-2962 now for assistance.