I am thinking of changing from the service I currently use to your service, but I would like to know how long I should expect a reply to take if I send in a request or important concern. Also, is there a phone number that I can use to contact you in the event of a major problem? We have had trouble with contacting the customer service people with the service we currently use, and it is imperative that our new service be available to us 24 hours a day. Our business depends on the reliability of our document downloading service. Thank you for your help!