If the prediction proves correct, it would mean a typical annual bill could be £500 lower than last summer.

The water firm made 60,000 sewage spills last year but insists river quality is improving.

The latest offer amounted to around a third of what the campaigner had asked for.

Debt Relief Orders are available to those on low incomes to clear existing debt and surged as the fee was axed.

The firm has huge debts and it may have to be taken over by the government if it runs out of money.