I checked my finance status and found that G4S Thailand over charge us starting from Jan - March, 2014. Can you check with latest PO that IBM and G4S has amended on 4Q2013. From my record the monthly payment should be 98,700 THB starting from 1 January 2014 until 30 June, 2014. Please let me know what actions to take to balance payment with G4S Thailand.