June Whitney

I am desperately trying to contact your department and have been trying for about3 months. Every time I phone in I am asked my name and NI NO. And address and date of birth. Every time I am told I have failed security and need to call back. They will not tell me what security I have failed. I moved 4 years ago but they will not take my new address because I have failed security!! Where do I go from here please?