Complicated question on refundability and flight changes. Currently have a OW MLE-SIN-SFO in saver J with a paid stopover. My previous outbound plan fell through and it looks like my best option is now SFO-SIN-MLE, but is currently only available in saver Y. Is there any way to add the new outbound to my itinerary and allow me to be refunded the stopover fee? Is this possible or is this case that: (1) would this only work that the new outbound would need to be J?; (2) would I only be refunded the cash if I cancelled, waited for the points to be redeposited, and then rebooked? Any input would be greatly appreciated!