Originally Posted by
tobitronics
What I meant is that I made a +qr booking for the inbound leg using my ticket#. This ticket# for the whole ticket has now changed due to a rebooking on the outbound leg. Therefore the old ticket# which was used to make the booking no longer exists/cannot be used to fly, hence my question.
Your reservation with a cancelled ticket number would cease to be valid and will have been updated with the new number. You still cannot have two bookings associated with one given (valid) eticket number, nor a reservation standing without a valid eticket number associated to it.