How to get data from this API response

How to get data from this API response

Hello,

I'm having trouble figuring out how to read this response. The result posted below is saved on a variable called response.

  1. <?xml version="1.0" encoding="utf-8"?> <string xmlns="http://www.ventamovil.com.mx/ws/">{"Confirmation":"24","Description":"RECARGA EN ESPERA","Folio":"000000","Folio_Carrier":"000000","Notice":"Feliz navidad 2019","Balance":"0","transaction_date":"23/06/2020 17:44:33","productVersion":"21"}</string>
I want to get the data between {} I tried this but got null:

info response.get("Confirmation");
info response.executeXPath("/string/text()");