I have a Samsung upright vacuum cleaner (SU2912) & I need a replacement filter for the cyclone system. I have tried emailing Samsung customer service at least 4 times, tried online chat twice & each time I get to the last step it won't let me go ant further no matter what I try. I have also tried calling customer support twice & then after going through their automated system & told I'm being transferred to an adviser the phone rings twice & then cuts off. All I want to know is where I can purchase a replacement filter & the cost. I am not impressed with Samsung & thank god it's only a vacuum that I'm having a problem with & nothing more expensive.