So annoying.
My surname is two words. Think 'Bitsy von Mufffling'. When I try to enter it into lots of forms (most recently Royal Mail website) it actually says there are incorrect characters in my name. But more importantly it's done the same trying to book a Covid test in the past and a recent vaccine for a family member.
With the Covid test I just ran the words together and called myself Bitsy Vonmuffling but with the vaccine it needs to be your actual real name so they can find you. I've tried Bitsy Von, Bitsy Muffling, Bitsy Vonmuffling, VonMuffling, Von-Muffling etc and the system won't recognise it no matter what I do. I'll have to do it by NHS number but come on, I cannot be the only person in the UK with a two word surname.