I had an itinerary on SAS to depart 21 April. The flight was cancelled per email notification 15 April; I waited a couple of more
days to make sure it was on the website as well and submitted a refund request on 19 April, which was acknowledged by SAS
in email. Today I received email from SAS that the refund has been processed to my credit card (it hasn't hit the card yet,
but I think the bulk of the work is done).

They originally said 7 business days, which I was pretty skeptical of, but they took care of it in the stated timeframe, so kudos
to SAS.

The itinerary was booked on sas.com, so that probably helped.