Jbl only lasts through their warranty period and then breaks

Purchased a jbl sound bar and sub valued over R6000 from makro only for it to last me just through the warranty (1year) It now comes on only when it wants to , took it back to makro and apparently they can't help with anything, looks like that brands that we invest our money in are proving to be us just paying for a name, so disappointed I will never recommend the brand .