Samsung — LCD problem at Mobile set

I am Kamrul Hassan from Bangladesh ; I am using your company mobile set Model GT –B5310RRAHUT. I am writing this letter for complaining about the bad quality LCD which has changed by your Dhanmondi serving center.
Last date on 2.20.2013 I sent my mobile set for repairing by friend name “Maksud” . . My complin receipt number is 9342 & bill number is [protected].That time complain were “ yes & NO keys not work, phone hangs problem” . After that we came to know from your end that Phone LCD problem and for that need extra Tk 2500. We agreed for that and I hope that you could repair this mobile as my satisfactory level. However I surprising found today in the time to take the mobile set that LCD monitor is changed but I could not read the sms & also I could not understand any alphabet . This phone contrast is very high and true colour is gone. I can not understand any picture also.
I asked about that your customer care people how could it can be recovery . His answered was very rude and told me that it was not possible to make the phone shape as earliest & this LCD is this type. That time I feel you are cheating with customer and cut the customer wallet with very cunning. My observation is that if I have repaired from any outside shop that case I got same type service. 2nd think is that I could not read any email and take photograph so that this mobile is now useless.
I believe this unethical way to take the money. Also your customer service & communication need to be trained how to measure the customer because this is customers’ own money not yours.
I hope you will catch it seriously and take necessary action about that because your company reputation is very good than other company.
Your consideration is highly appreciated.
Thanks
Kamrul Hassan
Cell number:[protected]