I keep receiving these calls every three days concerning a so called check to a walmart that was written in 2007. They call and verify my address and name and when I ask them to send me a copy of the statement showing I owe them in the mail I never get anything and this has been going on since july of 2010. They ask for me to pay them by checking account or debit card but I am uncomfortable giving them any information especially when I have repeatedly asked for them to send me something in writing and they dont.