Jenny authorises Sam, her agent, to sell Jenny’s antique diamond ring for not less than £3,000 and to purchase twenty plasma screens for Jenny’s business for up to £6,000. Sam buys the ring herself for £3,000 using a nominee and then sells it on to a dealer for £4,000. Sam keeps the £1,000 she has made. Sam, who is well known at Dixons plc as an agent for Jenny, contracts to buy ten plasma screens from them for £7,500. Advise Jenny.