Fee Receipt number for dropbox when appointment is separated out


I booked visa dropbox appointment for myself and my wife under the same profile ( my profile was used and she was added as dependent ) . The payment was done and same receipt number was received.
Now for some reason I need to cancel the appointment and book it separately as our itinerary has been changed.

The question is will it be allowed to book the separate appointments under same receipt number ? or how it will work if my assumption is wrong?