Nokia Lumia 710
Internet connection to PC

I brought Nokia Lumia 710 in Rs. 15000/- about a month ago and as soon as came to know that the phone has the problem to connect with PC for the internet hence I visited Nokia Care and submitted my phone to Nokia Care Bellary Karnatka in turn i got the Job sheet having EMEI No. 359300042665001 on 5/6. Nokia Care stating that phone will go to Delhi for repair. The phone came from Delhi. But the phone is having the same problem. till date 27/6

Whats the use to buy such phone worth cost Rs. 15000