All EU airlines are offering refunds if any flight in the booking is cancelled. LH Group, Ryanair & SAS are not processing the refunds fast enough citing that their systems are overwhelmed (MOL said they have 25 million refunds in queue in a system that usually handles 10000 a month), AF/KL are issuing refunds in form of a voucher that can be cashed in if you dont use it within 12 months. To each their own. The overwhelmed system and negative cashflow aspect are both plausible. I only have 300€ due with SK and LH, so not very concerned. A 10k refund with QR which I was more concerned about took about 6 weeks to refund.