Oh dear, Tracey, in her old age, has forgotten to post the last flag to her Instagram. Silly Tracey!
The only way of getting the last flag is to pry it from her yourself!
Craft up a convincing phishing email/message, using information given to you by Tracey herself via her verbose social media presence, and get that last flag!
These emails will be read out so please make sure you keep content relatively acceptable. Tracey was naughty in her youth, but she's getting on a bit now!