Tap the profile icon on the main cashier application screen. Scroll down and tap the cache guide. Another touch. Review your problem. Tap Contact Support. However, I would like to know how to contact the app support for cash? First, go to cash.app/help. Scroll down the page and click the Contact cash app support link at the bottom of the page. Accordingly, then sign up. Although, after that, continue with your question. Also, for more information on Cash Applications, you can visit their website. https://www.contactcustomer-service.co/phone-number/Cash-app