I need my Refund!!!

The service from Game store in Benoni lakesside mall is pathetic and should not be tolerated. My laptop has been taken to the manufacturer for the 4th time now and still no improvement. I need my refund as I am not willing to take the laptop for the fourth time and I am entitled to a full refund. My warranty contractual agreement is with Game Store and not with the Manufacturer. This type of service is totally unacceptable nor will it be tolerated. I don't believe the Massmart group pride themselves with such service and I will sure escalate this matter, should I receive no feedback.