If you need an R-number(s) for your participant(s) DO NOT EMAIL US PARTICIPANT NAME(S)!
Please send an email to support@ynic.york.ac.uk
Just tell us that you need some R-number / participant information and give us a phone number to call you on. We will call you ASAP on the number you have provided and get the name(s) from you over the phone.
Please , DO NOT EMAIL US PARTICIPANT NAMES.
(sorry for shouting - this is really important).