JOCKEY Club stewards yesterday warned stipendiary steward Richard Chew to exercise greater care in future following the Diamond Treasure ring bit incident. Chew ordered the removal of the ring bit from the gelding prior to his last start for which he was the 2-1 favourite. The ring bit was not declared on a list given to Chew who was the paddock steward on duty for Happy Valley's equitrack meeting on December 29. The stewards found Chew had not checked a master list which showed the ring bit was properly declared and they added a rider to the caution stipulating paddock stewards will, in future, check this master list. Chew was cautioned to exercise greater care in the future. Diamond Treasure's quinella punters lost out as the hot favourite hung badly round both bends without his ring bit and was caught for second place behind Win Label right on the line by Fortune Ride. French superstar, Gerald Mosse, pondering an appeal against a three-meeting ban, has been offered a further month's international licence. Mosse has had a great start to his current month's stint, riding seven winners in three meetings. The Arc-winning rider said last night: ''I'm very pleased to have been offered the extra month.'' Mosse was banned for careless riding after winning the final event last Wednesday night on Super Delight.