[Resolved]  Samsung — MOTHERBOARD REPLACED AFTER WRITTEN INSTRUCTION NOT TO MAKE HARDWARE CHANGES

I had purchased of Samsung S Duos (GT-S7562) on 01.05.2013. The Phone faced a problem of auto Shut Down in the Very First month. I doubted it to be my own mistake or not charging the phone. In the second month, it occoured more often. During the Third month, It happened on every instance of standby. This time i submitted the phone at the Service Centre (Phonecity @ Kalbadevi, Mumbai), with a STRICT WRITTEN INSTRUCTION on the Job Sheet mentioning, NOT TO MAKE ANY HARDWARE CHANGES EXCEPT ANY SOFTWARE ISSUES OR SOFTWARE CHANGES OR RE-INSTALLATION. Despite of such a Strict written note over the JOB Sheet, They replaced my MotherBoard without my concent and without informing me. My Phone was a BRAND NEW PHONE, and I expected to maintain it in the same way. But these guys at the Service Centre ignored my instructions and Replaced the MotherBoard of my Brand New Mobile Phone. It has been 3 Months that i am asking an explanation for their act, which they are not replying to. The Mobile phone still lies with the Service Centre. I want to take Strict Consumer Action on this act of theirs. HOW CAN THEY PERFORM REPAIRS ON ANYONES ASSET WHEN THE OWNER DOESNT WANT TO DO SO. Please Advice the Best Person and the Best Possible Way to handle this Issue. I WANT MY PURCHASE VALUE BACK. I DONT WANT TO GO FOR A SAMSUNG HANDSET ANYMORE. I DONT EVEN WANT TO SPIT ON THEIR PRODUCT. Samsung has no proper Contact Details of various Departments except for the Call Centre, where you get one simililar answer, that they will arrange for a Call Back. Due to this, I have spoken to various Executives (around 12 by now), I have send various Emails (around 15 by now), but not a single reply to my Question or an explaination of who has given them the rights to perform repairs over my phone even after my written Instruction to them. Every time they call and say, that my phone is ready, please collect it. without a reason to their negligence and ignorance. Kindly, Provide me with the Best contact of Consumer Lawyer who can positively handle my issue and get all my expenses paid by Samsung.