I want my hard earned R5999 back!!!!

On 6 July 2015 I bought an Acer laptop, two weeks later it won't respond when I switch it on. On 30th July I take it back & find a lady by name of Isabella. I ask if I should leave both laptop & charger since I don't know which one is faulty. 3/4 weeks later I'm told nothing is wrong with the laptop then I must bring in the charger, when I bring in the charger at Morkels, I'm told I must take the charger to Acer in Midrand or I will incur the costs if Acer people come to the store to fetch it and the lady gives me attitude at it. It's been a month now (if you count working days) that I don't have the laptop with me so I want my money back.