They've cancelled the route until October 2022 😔
Was painful but finally going through the refund process. We got cocky and booked a resort near Phuket in the last week of March, which of course is non refundable. Have sent a begging email.
I just want to go on honeymoon! We're keeping the annual leave and will try to rebook something nearer the time. We saved Avios for ages for these flights so rebooking isn't so simple.