Some companies have introduced surcharges to cushion the blow. But others see pushback from customers. SINGAPORE: Just this month alone, Mr Farid Khan, CEO of Singapore Cab Booking, has seen 20 freelance minibus drivers stop accepting jobs with the company, unable to cope with rising diesel prices. They could no longer afford the rental costs that had risen in tandem with diesel prices, and returned their minibuses. Some quit or switched to driving taxis, he said. "In my 20 years' experience in