The leader of the Conservative group on Bristol City Council is calling for a vote of no confidence in First Bus.
Councillor Peter Abraham says the company's refusal to listen to passengers over timetable changes is the last straw.
First Bus says minor adjustments have been made - and it will review the situation in the next few months.
Laura Makin-Isherwood reports.
More top news
After promotion via Wembley play-off in May, rejuvenated Bristol Rovers are brimming with belief.
Drying up with a brighter afternoon for most.
Kaylem Ryan was diagnosed in 2013 with Neuroblastoma. His family are trying to raise half a million to take him to America for treatment.