Very bad experience with customer service. New windows installed 16th of December 2018one until missing. Today is 6th of February still waiting for missing unit. Me and my husband call them so many times, Zenith no bother to inform us what is happening? Finally after almost 6 weeks ,we get appointment , guess what? No one came,no phone call to explain why? Phone customer service AGAIN ,ladie couldn't tell when someone will be able to came. Spoke with menager , actually he was nice, apologise and promise to get back to me next day....ha ha... of course he did not call me . After another phone call i get another appointment for 2pm...why i was not surprised ,when engineer did not came? Still waiting ...We get good price from Zenith,but if I know how much trouble we will have i will definitely choose different ,more expensive company. Engineer Naithan who was fitting the windows was absolutely FANTASTIC, very hard working man , Zenith should be proud of worker like him.