I am NRI. I had a credit card from a bank in UAE. I left UAE in 2005 without clearing the dues. In 2007, I had a call from a collection company from India to clear the dues. I have done all the payments in 2007. From 2007, I am requesting the Indian company to arrange the clearance letter. But they are not at all responding my mails. I do have only copies e-mail correspondence since 2007. Can I contact a laywer and file a case against this company?