On Tuesday morning, Arrow Ltd offers to sell 10 tonnes of wheat flour to Bow Ltd at 500 per tonne. The offer to Bow Ltd states: 'Please telephone or email an acceptance by 5.00 p.m. today. Delivery will take place on Friday'.

Bow Ltd faxes an acceptance at 12 noon, the fax machine informing Bow Ltd's clerk that the message has been properly relayed to Arrow Ltd. Unfortunately, the fax machine of Arrow Ltd has run out of ink so that acceptance is not received.

Advise Bow Ltd whether there is a binding contract with Arrow Ltd. in the following circumstances?

(a) Bow Ltd emailed a withdrawal of its acceptance before 5:00 p.m., but the email was accidentally deleted by an Arrow employee.