Dear sir

Maine Karbonn Mobile K560 Gurgaon (Haryana) se kharida. Uske 20din bad usme restart or phone book multiple ki kami aayi to mane mobile ko customer care center per legaya to unho ne kaha k ise hmare head office leker jaye. Mai use waps usi shop per legaya jaha se mene ye phone liya tha. Usne phone rak liya. Phir usne mujhe 15 din k baad phone diya mager wo thik nahi huaa mane use agle din shop per wapes legaya phir 2 hafte k baad muje phone replace ment kiya.
Is replacement mobile main poori phone book 2ya3 gante k baad empty dikane lagti hai

To sir please suggest me .

My email address. pnkajsaini@gmail.com
My mobile no. 0********21