[Resolved]  Samsung Corby Pro Gt - B531 — Losing my Contacts everytime

Address:

Chennai, Tamil Nadu

Sir,

I bought this Mobile on 22nd May 2010. From the day I bought this mobile I have saved my contacts many time but after few days when I check, many contacts disappear automatically, which is very disappointing. I bought this mobile to make my work easy.. but it is making my work cumbersome. I am very disappointed with the performce of this mobile. I am feeling cheated. Please solve my problem. Thanks.