I'm in the same boat as OP. I have a cancellation/refund request as of March and believe I should've been refunded already. As my flight originated in EWR (which was cancelled and they rebooked via different routing) - I called in and cancelled/refund just waiting for it to happen.
The SAS website indicates 'The processing of your request takes longer than usual at the moment, as a lot of customers are affected by cancellations due to the Corona virus, but please be patient with us. You will receive a confirmation from us when your refund is made.
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This is difficult for all but I also would like my money back.