If you're facing a situation that requires disputing a transaction on Cash App, if contacting the merchant fails, you can file a Cash App Dispute directly through the Cash App:
1. Open the Cash App: Launch the Cash App on your mobile device.
2. Go to your activity: Tap the "Activity" tab on the home screen.
3. Find the transaction: Locate the disputed transaction.
4. Access support options: Tap the three dots (...) in the top right corner of the transaction.
5. Select "Need Help & Cash App Support": Choose this option to open support options.
6. Initiate dispute: Tap "Dispute this Transaction."
7. Provide details: Follow the prompts to explain the issue, attach any evidence, and choose the appropriate reason for the dispute.
8. Submit: Once you've entered all the necessary information, review it carefully and submit the dispute.

By following these steps, you can efficiently file a Cash App dispute and seek a resolution for any transaction-related concerns.