Which centre will be go to? I'm checking if I can't see any timeslots on ExpressTest website. I'm thinking to let him go to London on 16/6 for the test too. Then he can submit the documents 1 day earlier. Not so hectic.
I'm thinking to use ExpressTest too. So you booked Same Day Test? Let me think if I can really go to London one day earlier. If yes, I think I can do the Same Day Test. If not, I'll need to book the 4-hr tests. Meanwhile, I can't book 4-hr test in London city centre from May onwards. Just the Same Day Test.