I bought Shark vacuum cleaner end of Nov.2018. in the begging of Dec. opened and tried to clean carpet.Power head went on red light and rubber pulley start emit burning smell. Called Shark service, talk to Rep. he said numerous time sorry and for $20.(New unit!!!!) offer to replace power head with new and more powerful. I paid by credit card money and he said in few days I will get bar code labels then I have to go to FED EX and send him defective head and in two weeks i will have new head. Two week passed , I got nothing. I call again asked where are labels again I got numerous sorry I will get them shortly. Week later Talk to Gabriel, again lot's of sorry, I asked him to stop telling me sorry and replace UNDER WARRANTY with additional $20 my unit ASAP. He informed me that we have to go with whole process FED EX again. I asked him to transfer my call to his supervisor, he put me on hold for 9 minutes and then informed that his supervisor too busy and he would definitely call me in next 24 hours. After 24 hours call again and talk to Sebastian, after multiple questions and sorry I asked him to go to supervisor and explain everything and let me talk to him. In a few minutes I was connected to Valentine, she told me she is supervisor ( I have doubts about it). She advised me that they have a very specific warranty on their products. The can replace my power head on the same one and no guaranty it will be better, and I have to pay them again $20 dollars +tax because they did not withdraw money yet on first time and then they will send me labels (who knows when) for FED EX and when they receive my defective unit I have to allow 4-6 week for manufacturing new unit. I told her this is what she said is different what was said by her employees and her published warranty does not said i have to pay for replacement parts and wait up to 4-5 month. I refused to accept this Another words they have no warranty on their products or keep wrong personal . Now I have useless unit SHARK ROCKET UV422CCO Alex