It is certainly possible to add more inmates onto a sentence, assuming we have availability inside the Penitentiary for your specific date and time.
The best option for you is to buy the ticket(s) for your additional inmate(s) through www.alcotraz.co.uk and select the venue location you are after.
On here you will find a calendar of dates, simply purchase the additional tickets for the same date and time as your original booking and ideally using the same name as the original booking.
Please ensure you and your accomplices arrive together as a group and it will be no problem seating your gang together.
When the website is showing as sold out on your chosen date or time, if your original group size is any of the following then we should be able to add another ticket online for you to buy: 3, 4, 5, 8, 9, 10, 11, 13 and above
If this is the case, please email thewarden@alcotraz.co.uk with your name and email address and they will be able to confirm this.