Donot want to refund money back for faulty laptop

i purchased my Packard Bell laptop 19/03/2015. On 02/11/2015 I took the laptop back due to laptop having a blank screen and there was power on the unit. I received it back on 09/11/2015 and technician (Aqeel Mohamed)<br> feedback was \did start up repair. unit tested ok\" Then on the 14/01/2016 the laptop gave the same faulty problem. when i asked for my money back i was told by 2 managers Douglas Simons and Rene Augustine that a unit has to have the same fault thrice before a credit can be given. the unit then went away again and i was asked to pay a repair charge which i refused to pay and Douglas Simons said that Game will carry that fee since the unit was still in it warrenty. i received the unit back which was seen to by the same technician (Aqeel Mohamed)feedback was \"did start up repair\". then to my dismay on the 18/03/2016 the unit gave me the same problem. when i took it back i was told by another manager Jayce Pillay i cannot have my money back as the warrenty has fallen but the item is still in its repair warrenty stage. what i cannot understand is why is the unit still giving the same technical problem after Game paid the supplier \"repair charge\". i want my money refunded."