Michaela Hendra is meant to be starting Year 10 at Western Heights High School this week, but that's now in doubt as her mother Suzanne is unable to get her to and from school every day from Upper Atiamuri - about 36km from town.
"She [Michaela] is absolutely devastated - crying, upset and stressing," Ms Hendra said.
"It's a nightmare."
Ms Hendra said she had wanted Michaela to attend a co-ed college so had chosen Western Heights High School despite it being out of zone because she was assured her daughter could get the Ritchies bus to John Paul College, then travel the rest of the way in a school van. Many other students at the school were in the same position, she said.
She said Michaela was doing well at school so she hoped a solution could be found, but admitted time was running out.
Ms Hendra said she believed co-ed schools should be treated as having special character in the same way religious schools were.
Ritchies Rotorua manager Breta Hatu said their contract with the ministry was to transport eligible students and they were not obliged to take children whose parents sent them out of zone. "If we take out of zone children we end up with overloaded buses and could lose our contract," she said.
Rotorua MP Todd McClay said he had been contacted by a small number of parents about the change. He had spoken with Ritchies and the Associate Minister of Education Craig Foss and was awaiting further information from the ministry.
Mr McClay said he was in favour of parental choice over which schools their children attended but in this case it was a logistical issue.