If you have two accounts on Cash app, and you use the first to make any payment. But, now you want to set up a second account to get a refund from Cash app. So, in this scenario, you have to simply tell that person, i am going to change my account so make the payment in that. Or, you can simply log out your first account, then sign in it with the second account and make a request to get money back. https://www.contact-customerservice.net/cash-app-customer-service-number/