Issues with the brand new tv’s i bought!!

Hi-fi corporation boksburg

I bought a JVC 65 inch smart tv from hifi corporation i went home set the tv up and when i switched it on it had a ticking sound so i phoned hifi corporation and they said i should bring the tv back i took it back and they gave me a new tv just to get home with the new tv and when i switched it on it had the exact same ticking sound took the tv back then they gave me a different brand tv sansui 65 inch got home set it up and the tv has a small white blotch on the screen this is very irritating as i have to use my airtime and petrol to take the tv back the whole time when its not suppose to have any problems as its a brand new tv out of the box!!!!