The Gambling Commission is writing to Leicester (and Everton and Forest) to "warn the clubs that their officers could face up to 51 weeks in jail and unlimited fines if they were found guilty of promoting "unlawful gambling websites".
"It wants an assurance from the clubs that they have "carried out due diligence on their white label partners and that consumers in Great Britain cannot transact with the unlicensed sites," it said."
https://www.bbc.co.uk/news/articles/cg5y9ggqpqdo (Main story is with regard to Everton but read down)