(833) 293-8333
I think I knocked their number down for a little while but it will probably come back up again. I found a bunch of sites associated with the number, keep an eye on them:
https://www.monktech.net/cash-app-customer-service-phone-number.html
https://www.emailcontacthelp.com/cash-app-customer-service.html
How to get Cash App customer Service Phone number?