How to separate my family from my account after i book the appointment

Hi,
I have paid the visa fee for me and my family(wife+kid) from my account , also booked the appointment.
however now i have to reschedule only my appointment.

my question is, Can i separate my family from account and book the appointment for them in my wife’s account and use the same receipt numbers to avoid repayment?

Thank you.
Srini.