To speak with QuickBooks Desktop Support, call their customer service number at 888–850–3930. Ensure you have your account information and details about the issue you’re experiencing. When prompted, select the appropriate options to reach the support team for QuickBooks Desktop. Once connected, explain your problem clearly and provide any necessary details. The support representative will guide you through troubleshooting steps or assist with resolving your issue. If you need further assistance, they can escalate the matter or schedule a callback. Be patient, as wait times can vary depending on call volume.