Complex sentence: The company maintained its relationship with its origins in the UK through a long-term sponsorship deal with Bolton Wanderers, a Championship football club, however, in 2009, Bolton changed their sponsorship to 188bet.
Split into simpler sentences: The company maintained its relationship with its origins in the UK through a long-term sponsorship deal with Bolton Wanderers, a Championship football club. In 2009, however, Bolton changed their sponsorship to 188bet.