Julians, STJ, Malta. JeffBet is operated by ProgressPlay Limited of Soho Office, 3A, Punchbowl Centre, Elia Zammit Street, St. 18+. Responsive and helpful assistance. Fully licensed & regulated. Cons. It is a PayviaPhone casino. JeffBet is an online gambling company founded in Its product offerings are online casino, online slots, live dealer games, table games and sports. Offers enticing cashback incentives; Enhanced live betting experience. JeffBet's online casino features a diverse selection of games, including video slots, classic slots, and progressive jackpot slots, in addition to the UK. The platform boasts an impressive array of both casino games and sportsbook options, offering something for everyone. Claim 20 free spins on Rainbow Riches, no wagering. Your experience can help others make better choices. . Gambling can be addictive. Whether it is exciting slots, immersive live dealer games or the best odds on sports betting - JeffBet is your number one choice. JeffBet is a trusted online casino and sportsbook for UK players with lots of casino games and thousands of odds. Join the people who've already reviewed Jeffbet. Play over + of the best UK online casino games at JeffBet. The seamless integration of these features. JeffBet Casino bonus & promo codes () ✓ Free spins, no deposit and welcome bonus ✓ Claim JeffBet Casino bonuses. Incurs fees on withdrawals; Limits parlays to.