never purchase online on makro,frustrating customer service

Bought a machine around April this year,Defy online but it doesn't work anymore always gives me an error message when i use it.This is the second time i buy something online always faulty first the hp laptop screen doest work anymore.poor customer service ,you promised to give me a call before end of business nothing,supervisor logged a request but nothing has been done .I have sent her emails but nobody really cares.I would not advise anyone to buy online because you leave us frustrated and no aftercare services can you please learn from game stores no hassles when logging such complains.Please sort it out because you are inconveniencing me.Why sell us faulty things