password reset help

I have be using two comcast email accounts for about 7 years.  3 years ago, I moved to a state where there is not comcast service.  So I am not connected to a comcast modem.  I have continued to use my emails for the past three years without any problems except to reset my passwords from time to time as required by comcast.   2 days ago comcast blocked me from my primary account.  when I try to sign in it say there was some form of unknown activity and please reset my password.  Therein lies the problem, the system will not let me reset my password. have talked with 3 different agents of comcast and they basically in send me in circles asking me to verify the same information over and over but there are unable to find a solution.  This what they tell me.... sign on to your comcast account and you can reset your password there... great except I have not had a comcast account for 3 years.  Then they say have a friend with a comcast account access your accout and then reset my password ... I don't live in an area where anybody has a comcast account.  Then they tell there is nothing they can do and I should of had a phone number associated with the account ... which I did, I have successfully changed my password many times in the past.  They then said possibly one of their agents removed it at some point for some reason, all of which is no help to  me.  I asked them since they have blocked the accout why cant they just unblock it.  No one knows how to do that.  I have hundreds of files addresses and companies tied to my email and I can no longer access it.  ??????