I received some supplies in May of this year from Livonia, Michigan. There was supposed to be two transmitters in the box along with a supply of sensors. I used one of the sensors in July and was supposed to use the other one very soon. I checked my supplies the other day and there a package that was supposed to be the other transmitter. When I opened the package, it was empty, no transmitter, no nothing. It was a new package, so I have no idea why there was nothing inside. I'm at a loss as to what to do because I'm going to need that transmitter very soon. Please help. Thank you.