Yes, you can dispute a transaction on Robinhood 1-866-558-7677, particularly if it involves your Robinhood Spending account or Cash Card. Robinhood provides several methods 1-866-558-7677  to initiate a dispute, depending on the nature of the transaction. Call 1-866-558-7677  to speak with Robinhood's customer support team. Initiate the dispute through one of the methods above.