My experience with communicating with this office...

My experience with communicating with this office has been a nightmare. I have been trying to speak to a human to have my address changed for 2 days now, always a busy signal on the transfers. I am unable to do a change of address online because I have misplaced my PIN number , PIN numbers will be mailed to my address on file!!! "If your address is wrong, then contact the department" I am going around in circles. Called again today and now there is voice message and no options to communicate with anyone, then the line hangs up. Terrible experience!