Poor customer service from LG Electronics

I am extremely disappointed in the service received from LG. It's not been a year since I bought a music system from them at Game N1 City... On 20 September I've returned it as the Subwoofer, speakers and Amplifier were faulty. After 2 weeks Game called me to advise that the system has been repaired and ready for collection. Nothing was done, they only cleaned it and wrapped it in bubble wrap. I called LG directly on Thursday, 12 October to inform them of how unhappy I am and that nothing was repaired after the system was booked for repairs. I was promised a call back however untill today no one made contact. I would appreciate it if someone in management acknowledge my complaint and make contact with me to assist. I'm shocked at the service received from such a big organisation!!!!