Conn's Home Plus

Have had a service man out 3 times done as the 1st man said changed hoses and evened it up still didn't work 2nd man came out said nothing wrong didn't look put water in to see why it wouldn't drain. Third nan came up said the same thing but it is still not draining out I am fed up with them and we have the warranty. They just seem to think the service men are doing great work but either they don't care or just think we are crazy