Downgrading an upgrade ex UK??
 

What happens if I have to downgrade a sector from J back to Y ex UK departure.(If I had used miles to upgrade it from Y previously). From the posts on this forum, it seems that you can do it only if a seat is available in the same fare class as originally booked.

Do they refund the extra APD which was paid at the time of doing the upgrade?

Yes correct and then they refund the miles if they haven't expired

In theory, yes

Yes, you can downgrade only if the same booking class (W, Y, B, K, etc) that you were originally booked on is available.
Also you dont get the refund of the extra departure taxes paid when you made the upgrade (that was the case when I changed my return flight to ex-spain instead of ex-france).

I would think they should refund you since you aren't using the J class ticket. I had a ticket in Y ex LHR that I then upgraded to J and had to pay the extra APD. I subsequently cancelled it (when the EK sale happened in Dec) and they refunded the ticket + APD collectd - cancellation charges of INR 5K.

you are lucky. i did not get any refund :rolleyes:
maybe i should call them again.

You definitely should. Speak with the local Skywards office. Sometimes it may just get delayed for no particular fault of yours. I had my Wife and daughter in the same PNR and they refunded my daughter's ticket a full month after they refunded mine and my wife's ticket after several calls to EK.