I don't know for sure. It was available for new members at Bet365, but I don't know if it's still there. You may find some good offers here https://www.topbettingwebsites.co.uk/bonus/
If your account is quite new you may qualify for the "early payout offer" - If your team leads with 2 goals, you will get your full win and you will be able to keep it even if later the opponent equals or reverses the match.