Very bad service and faulty products

Lisby at Gapegate Makro should really go for some training how to speak to clients and trying to Assist them. She is *********** and very rude. Rolls her eyes while speaking to her and all she can say is, we can do this all day. We bought laptop within a month having problems, no one comes back when following up we must come to store, at store Lisby says we'll you did not speak to me so I can't help you. No other manager available short staff they said. We want a credit in store to buy something else but as usual Makro can't help. So my question will be how do we get this resolved if there is no assistance.