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