Sony Ericsson W580i — The worst servicing centre of sony ericson,bangalore

This is with regards to the SALORA Internationl, HSR layout, Bangalore. This is one of the WORST authorized servicing centre for sony ericson. I have given my handset for servicing 2 months back, till now its not yet repaired. I have called those guys many times, every time they are saying it will be ready within one or two day. Since past two months this is going on and on but its not repaired and i have visited the shop so many time. To repair a mobile these many days will take?...I don't know why sony ericson is not taking any action against them.The guys working in that shop are very cunnig fellows and even they are thefting the parts from the mobiles and replacing to another like that. So sony ericson has to take an action against them or they should cancel the authorization to that shop. Other wise who will buy sony mobile...

Regards,
Shyam