HSBC BANK NEVADA NA MAIN STREET ACQUISITION,CORP.A/A/O i am being summonned to court on 9/19/2012 for a card I never opened in 2007 pomona, California

I was served with paperworks on 08-20-2012 which was left stuck between our storm door and main door and discovered it late that night that I have to appear in court on 09-19-2012 at circuit court of cook county at the daley center in chicago.I called the attorneys representing hsbc and said that years ago I remembered receiving a statement from hsbc which was all along being mailed to an address in Indiana and was forwarded to my name after charges already exceeded over $1000.00.Immediately called hsbc attorneys that they hired named markoff krasny llc located at 29 n wacker drive in chicago, il. and told them that this is the first time i received a statement from them  and never lived in Indiana and that I was raised in chicago,illinois  and this might be identity theft I told them. It could have been a year later maybe 2008  when I received that first statement from hsbc.They then told me that they would send me some paperworks to fill out so they can investigate the matter which I did received and mailed back to hsbc.And that was the last I heard of them.I haven't heard of main street acquisition who is accusing me that I owe the money and that they were a collection agency until 08-20-2012 when they stuck those summons papers between my doors.this matter really bothers me because all this attorneys office tells me is that this is a live debt and I owe it. I told the attorney his name is tom krasny that why are these people after me after 5 years later.I need all the help I can get to prove to the judge on 09-19-2012 that this is a credit card debt that is not mine.It was all along being mailed to somebody in Indiana and this should be enough proof back in 2008 when I told hsbc that I did not open this credit card. I pay my credit cards on time If they check my credit reports.