Same issue for the third time

I have a Samsung GT-I9500 which has been defective with the same issue since being from repairs in March 2015, the issue was with the receiver, it has a crackling noise when someone calls and also when listening to music, the issue was fixed by Darro Electronics in March 2015 but the problem re - appeared in April 2015, having being told that Darro was no longer contracted to Samsung, I could understand that this could be an issue of poor workmanship, however now the same problem appears again after being repaired by SSS electronics, now I really do not know what to do? I have become so attached to the Samsung brand that I honestly feel betrayed now. It has reached a stage where I think the repair process will not help, I am sure you guys will ask me to send it in for repairs again and again until the warranty is expired, and then say 'Sorry sir, we can't help you unless you pay for repairs'.<br> Now whats more frustrating, is that I already logged this and they will get back to me, I am still waiting?<br> ***<br> <br> <br>