Consumer Redressal

I purchased a Sony LCD TV (KDL-32CX520) on 01-2-2012 for Rs. 28,200. The protection glass over the LCD screen developed a crack. I brought the set to an Authorized Sony Centre (ASC) M/s TECH SHOP in Guwahati on 26-03-2012. The ASC declared that the set will not get warrantee coverage as it was not a Sony India product (though I showed the retail invoice). When asked for an estimate for the cost of repairing, the ASC gave me an estimate for a whopping Rs. 10,382. This was for complete replacement of LCD Panel (LCD Screen plus protection glass). But LCD Screen of my TV was perfectly working and I did not want to change that. I wanted to take back the set without servicing. The ASC asked me to pay Rs 662 as labour charge. I paid the amount as I had no other option. On 16 Apr, I brought the set to another ASC - M/s C.P. Enterprise. Since I suffered a lot, I decided to pay Rs. 10,513 as demanded by the ASC and got the TV repaired (the cost of LCD Panel Rs 9,839 plus labour charge Rs. 674). My points are: 1. why the first ASC M/s Tech Shop charged me Rs662 for just giving estimate? 2. Why Sony forced me to pay for the whole panel while it was possible to just replace the protection glass, whose cost is just a fraction of the full panel?