I wanted to send a writing for correction. As it is a private writing, I chose the tutor to do this correction. However, when I want to send it, appear a message error that I have to choose a tutor! I tried again but same problem.
Thanks for helping finding a solution 
Hi there, I have just tried this and found the same issue. So sorry for the inconvenience. The team are on it and it should be fixed soon. Thanks for your patience.
I’ve just tried and the writing has been sent! Thank you for finding the solution and so fast: