China has halted all bank cash transfers for three days and all forex conversions out of yuan for nine days, according to a Forbes item out Sunday.The Forbes contributor, who reported the closure citing a notice issued by Citi on its Chinese portal, described the official excuse (system maintenance at the central bank) as “preposterous.” This comes just ahead of the Chinese New Year when cash needs are at their highest.Something is very wrong in China at the moment. Banks’ apparent need to conserve cash, coming just weeks after the last incident.