Who's helping her out ?

After that leaving the cabin she went to talk over to the reception. She asked who transferred her dad and who paid the bill and everything. The woman there replied that they are forbidden to tell who paid the bill. As long the money has been paid they don't care who paid it. 

Her mom came from behind placing her hand on Lucy's shoulder. '' What's wrong?'' she asked. Lucy turned to her. She replied to what the receptionist said. '' What? So who paid the money? Who's helping us with all of that money? I can't understand what's happening here at all.'' her mom asserts. 

'' Who's this invisible helper who's helping us. Anyway, we can figure about it later. Did you talked with the doctor?'' Lucy asked. '' Yes, he said they need to do the operation tomorrow. We should come here by the early morning.'' 

'' I see.'' 

'' Don't you have to go to the office today?'' her mom asked. '' Yes, today's the execution of the big order. I hope we can pas