[Resolved]  Samsung Mobile SJ 150 — such a worst threat to the customer

I purchased samsung mobile SJ 150 on 16/10/08 and it has repair on 04/05/09 and i gave my mobile to service at chennai samsung service center (opp to k3 police station)in anna nagar, chennai under taken by hi tech solutions.
They found the fault that phone is not charging and it has been confirmed to do service under warranty.they took 5 days, when ever i make a phone call there is no proper response and they took 15 days but still it has not repaired at last they refuse to do service and told me to pay 3800 RS to change the charging pin in phone.The total cost of the phone also not much. the staff is just testing the patient and no kindness, no response, even they are not contact with eye while communicating.i am just wondering to see like this persons in the service center.please kindly brief the staffs in service center so, that the customer can turn around to purchase on your samsung products.