I am writing this letter in complaint as a purchase of mine, with payment from my checking account having well more than the sufficient funds for the amount of my purchase was denied based on information from this company. I do not see how it is possible for ya third party to block access to my money and prevent a purchase that I would like to make. I tried to phone Telecheck to immediately resolve this issue but was only able to reach an automated service which then disconnected me when there was no check number to be given (one was not required for the purchase). I have made many purchases without issue, almost always paid by check, and I do not appreciate their interference with my purchases. I have had the same checking account for 15+ years and now suddenly Telecheck is going to deny me use of my own money to make purchases. I have read through hundreds of complaints about the way this company is conducting business and the numerous customers whose checks were denied despite having sufficient funds for their purchase. The only one profiting from these practices is Telecheck, whose charging vendors for the services and then causing them a loss by denying customer purchases, without valid reason. I have written a letter of complaint to Telecheck since you cannot reach anyone personally to address the issue. I have filed a complaint with the BBB of Metropolitan Houston (http://www.bbbhou.org) and the Attorney General of Texas, Consumer Protection Division (http://www.oag.state.tx.us/consumer/complain.shtml), as have many others, but perhaps a class action lawsuit is in order to address this issue since it is ridiculous to me that any company is capable of blocking access to your own personal funds, causing unnecessary embarrassment, humiliation, and aggravation to the customer.