A debtor who gives written notice that it will only be able to pay its debts in the future effectively gives notice of inability to pay, constituting an act of insolvency under s 8(g) of the Insolvency Act. A request for time to pay a debt that is due and payable ordinarily gives rise to an inference that the debtor is unable to pay, and where coupled with an undertaking to pay by instalments, constitutes an act of insolvency. A notice of inability to pay debts does not cease to be an act of insolvency due to subsequent circumstances. Where the requisites for a provisional sequestration order are established on a prima facie basis, the court should ordinarily grant the order absent special circumstances, and it is for the respondent to establish those circumstances.