If you or your clients are experiencing dropped or partial text messages being delivered, this is a known problem with T-mobile. BookAShowing is working correctly. The T-Mobile system is dropping parts of messages (most often the first part of our message) or random messages entirely. T-Mobile would be the party to best assist you for fixes for your specific device. Let them know you aren't receiving all of the messages when texts are sent to your phone through the email-to-sms gateway of tmomail.net.