Regulator Ofgem has warned Scottish Power that it must improve its customer service by the end of January or be forced to halt proactive sales.
The company has three objectives. It must improve call waiting times, and will post progress reports on its website after the end of November. It must reduce the number of overdue bills from 75,000 to at most 30,000 by the end of December, and it must eliminate the backlog in acting on decisions taken by the Ombudsman Service.