this is RIDICULOUS, why would Chloe need to have her surgery paid for. Her parents are relatively wealthy. She was allegedly some hot shot opera singer, so she probably had some form of insurance. She was in a car accident, so either the limo driver or someone else was at fault. She could either sue the driver and/or the limo company.
As I understand the spoiler, Brady and Nicole go to same clinic where Chloe is because that's where the child they are helping is. (Shows you that subordinate clauses and punctuation can sometimes be very helpful.)
Brady and Nicole are not paying for Chloe's surgery. They are paying for a little girl who is having surgery. This little girl just so happens to be in the same clinic as Chloe.