Caroline Keohane

I have just moved to the UK to begin working here. I have applied for a National Insurance number and received an Application Reference Number by email and the email provided a number to call to make an appointment to show my ID documents as the next stage of the process. However each time I call the number there is just an automated message and the phone goes dead when I make the proper selection. This number does not seem to be working. Please please can some help be provided as I need to speak to someone as I cannot get on the payroll system without the NI number. Thanks in advance, Caroline Keohane