They basically say that they can close any account whenever they want, for no reason whatsoever:
"Thank you for your response. We can certainly understand your disappointment at the closure of your account. Please know there are many factors taken into consideration when an account is closed. Any one of these factors may, in and of itself and at our sole discretion, warrant the closure of an account. We sincerely apologize for any disruption this may cause you or your business."
Hello! Thank you for taking the time to leave us a review! We are very sorry if we have caused you any inconvenience. We can assure you that we are taking the satisfaction of our customers very seriously and we are sorry if we did not live up to your expectations. If you need further assistance, please let us know at service@2checkout.com.