Ok this has happened to me in the past
Relax, i know it's hard no to as it's a really scary and shocking situation to be in.
It's good you checked out your credit history, what i also did was ring/ write to every company informing them of what has happened. Make it CLEAR that you did not open the accounts etc and so will not be held responsible to any expenses etc. that pretty much makes them take notice.
Some companies deal with this type of thing well, others admittedly don't.
Also report it to the police, i did so here in the UK but they were pretty much useless and said unless i have bailiffs knocking on my door etc then they cant do anything about it.
I have also had a security check thing put on all my cards, whereby if i use it, i normally get a phone call if it looks suspicious and i have a password on there. It means my card doesn't get accepted in certain places ie esp the internet, but for me the inconvinience is worth the peace of mind.
Apparently these fraudsters normally go through your trash and try and find something with your name and address, or card details on it. With me, they found something to do with my car (not a bill) then somehow faked a utility bill and took this to various banks to open different accounts.
i now shred EVERYTHING that has my name on it before i chuck it out. Invest in a shredder or burn everything.
I remember when i first found out what had happened, i kept gettting what i asumed to be junk mail from various companies and didnt open the letters. It wasn't until i was sat there bored one day and decided to see why i was getting so much. When i opened them one by one my hands were literally trembeling as i found account after account and loans and phone contracts had all been taken out in my name
At first i simply burst into tears, and couldnt work out why it happened to me, then i just got damn angry at the.......
But relax, it can be sorted out, do you have any idea how long this has been going on for??