You can call 1626 to check your outstanding period of contract
running for your mobile line, at the same time to save time, can
ask them to check for you the SingNet contract, and pose them all
the questions you have now, and if you don't have satisfactory
answers from them, ask for a person higher in authority to speak to
you... By the way, remember to ask for the name of the receptionist
on the line so you can quote her for saying things... My
experience... 