As another data point, requested a refund on 2 x vouchers today from Air France on FB messenger. After confirming I wanted a monetary refund received the following reply:
Thanks for your confirmation, Reload. We have requested the refund for both vouchers, the reference number is: XXXXXXXXXX You will receive an email as soon as your file will be handled. Thanks for understanding.
Just see how long it takes to go through, they haven't requested bank or CC details as yet. I'll post up once things (hopefully!) work out.