I contacted vivid imaginations customer services, sent them an email and got a reply which I have copied below
Thank you for contacting Vivid Imaginations Consumer Services.
Please contact our Help Line on 01702 200660 for up to date availability
information. You can purchase the extra characters directly from us.
We look forward to hearing from you.
Yours sincerely,
Vivid Imaginations Consumer Services
01702 200660 Help Line
Mon - Fri 9am - 5pm
[email protected]
I rang the number and they told me that Violet plus one other character wasnt in stock at the moment but they are expecting it within 3 weeks