This is the value, for the duration of the relevant period, of revenue earned from calls. Calls are made by the trustee for members to pay additional insurance premiums on a wide range of circumstances such as exposure to additional risk, to cover cost of default. 

For the purpose of Discretionary Mutual Fund (DMF) reporting, this is the value of member revenue earned from calls. Calls are made by the trustee for members to pay additional contributions on a wide range of circumstances such as exposure to additional risk, to cover cost of default.