How Do I Call Cash Support On My Phone With Cash App Dispute Number? If you are unable to get help through the Cash App dispute number or cash.app/help, you can reach the phone by calling 1 (800) 969-1940. Alternatively, you can reach the mail at the following address: Cash App,1455 Market Street Suite 600,San Francisco, CA 94103.As a reminder, no one represents the Cash Application that has ever requested a login code over the phone, social media, or through other media. Although, Visit our website for more help to contact cash app. https://www.experts-support.com/blog/cash-app-dispute