SINGAPORE-The Ministry of Manpower( MOM) is probing companies accused of not paying some workers at Bukit Timah Community Club vaccination centre.In response to queries from The Straits Times, a spokesman for the ministry and the Tripartite Alliance for Dispute Management confirmed on Friday( July 2) that MOM had received nine complaints from people who had been engaged as vaccinators and nurses at one of the vaccination centres, claiming that they have not been paid.ST understands that the two