Home Digital Systems

DO NOT USE HOME DIGITAL SYSTEMS. They were misleading and charged me $850 for TV installation. My family purchased a 77 inch TV from the Good Guys Hectorville and paid $420 for installation at the time of purchase (on the good guys website they say the average price is $330 for a 75 inch tv). The company they organised to install the TV (Home Digital Systems) charged an additional $430 after install, they informed me that $80 dollars was for 4K connection and $15 for an additional cable however were unable to identify any rationale for the extra cost. When I called to try and request an explanation or a refund they were dismissive.