Hi Voni,
I've had an email from one of my colleagues with the following information:
You will be receiving a "group visa" pack from Just You in 2-3 weeks time. We only need a colour copy of your passport information page, a colour copy of the observations page of your passport and a colour passport size photo.
You should be able to send in the above information before or after you return from your holiday in July.
When you receive your final documents you will also receive a confirmation card showing the details that have been used for the group visa to be processed.
Kindest regards,
Julia