In the summer of 2024 Aarav was just finishing a masters in international business management at a British university. Born in India, and on a student visa that was fast running out, he needed to find a job with a company that would sponsor him to remain in the UK. When someone shared an advert in a WhatsApp group promising exactly that, Aarav – not his real name – thought he had struck gold. “Papa Johns work visa available – all over UK,” proclaimed the advert.