Bankruptcy question I am worried?

Here is my situation. $75k in credit card debt, upside down on my house. I filed Chapter 7 May 15 had my 341 meeting yesterday, no creditors showed, no questions from the court, in and out in one minute. I am worried about the letters that my attorney have received from 2 of my credit card companies about "fraud". I have made some mistakes in my life but I wouldn't do anything like that on purpose. I did take out some large cash advances (23K) in Sept and Oct 2010 to fund my serious gambling problem. I have had a gambling problem since I turned 21. I no it sounds stupid now, but I thought that I could win and bail myself out of debt. I have been talking to my priest and attending gamblers anonymous classes. I am trying to break my habits. Its HARD. I used my credit cards up until 2 months before filing. Why are they sending these letters? should I worry? What will happen? Is there some sort of repayment plan? PLEASE HELP