I left a message because i discovered my salt was empty. I had been sick and didnt know for how long. We had a hurricane in Bemidji and power was out everywhere and no phone service! I left a message and somehow Culligan got it and texted me they would send someone out and they did, even though the town still had now power! I had power and the service worker was coming from Blackduck and hadnt gotten hit. Culligan is so good. And can work around the hardest problems!