I have received several of those, joer, over the past weeks. I was also, at one time, pleasantly surprised. But have since received 2 (unwanted, unusable) vouchers for my 3 cancelled flights. I have tried to get a response from their chatbot but am not convinced it actually ever does anything.I have just received an email from Ryanair offering me a full refund for my cancelled May flight or re routing option. I have applied for a refund on the link provided and I will have it in due course. That sounds positive..