Hyundai Grand - Car issue not resolved

Hi. I am having Grandi** since ****. I have been a satisfied customer of Hyundai since long & really trust the brand. But since last one year, my entire trust has been broken by Hyundai & I am losing the faith also. I got an issue in Apr'** that I was not able to open & close my car through remote key & even after opening the car manually, I had to start the push button by touching the corner of the remote key. Hence I reported the issue at Superon Hyundai, Gurgaon. I was told that the SMK has been damaged & it needs to be repaired. I even was told that once it will be repaired then there wont be any issue further. Hence I paid ***** & got the SMK repaired. I faced the same concern in Aug'** & reported the issue to same service center. Then they said its not SMK issue, its remote battery issue which I didnt find it worth as the remote cell light was quite healthy. But then I got the cell changed as per their feedback. Again I got the same issue in Oct'**. And this time they told me that they got the same SMK repaired again. Now when I am facing the same concern again in May'**. Then they are showing me their back by stating that I need to make the payment of ***** again for new SMK. I have been telling them that my issue of SMK has been repeatedly occurring in last one year & now they are asking to spend another ***** for the resolution. I am a middle class guy & spending ***** again for the same issue is absolutely kind of harassment. I am quite tensed & dont know whom to ask help from. Request you to please look into this & help to resolve my issue for ever.