Makros abhorrent service

I purchased an ASUS laptop from Makro Toti when I got home I followed the prompts and initial setting up installation , t booted up and I started to use it immediately I checked it up and saw everything was running fine so I left it for 2 hours to charge and to resolve any software issues thereafter I started using it to get on the net and watch youtube videos and noticed that it was very slow with loading videos and there was audio and no picture it was giving me a whole lot of issues so I thought it was the internet connection that was slow when I checked all my other devices they were running perfectly ! I shut down the laptop and decided to try again first thing in the morning when I tried it again with the streaming it wasn't loading properly so I decided to take it back to makro because the main function of it wasn't working properly when I got there I waited 30 minutes for someone to attend to me after speaking to the lady at reception. When I spoke to the technician he looked confused and called the manager they both fiddled with the laptop and the update settings but didn't get it right I phoned the complaints department and they gave me grief and started getting angry due to the poor service from both ends and its a hour that I have been there with no results. I phoned ASUS to get some sort of clarification and was advised to reset the windows so I told the manager what needs to be done and he disagreed and continued to tinker with no result for another hour then he said that I need to take it home and try downloading the update which he and his IT guy couldn't do for 2 hours and if there is still a problem I should bring it back which was ludacris an made no sense at all . I took the device and went home trying for hours and couldn't download the updates ! So I tried to reset the windows as the manufacturer stated it took me some time to reset and re install but did it successfully. I am uphauled with Makros service and their incompetence and recommend people to buy these devices from actual pc outlets that have professionals that could assist the customer!