[Resolved]  Apple ipod nano 4GB silver — not accepting the product for service

i have purchased the apple ipod nano 4gb silver on 26/10/2008 from PLANET M RETAIL LTD.,

INVOICE # 119174

STORE: 005A

now my ipod is not working, it needs service or replacement and when i go to the service centre of apple in New delhi, ansal plaza, i have shown them original bill with a stamp of PLANET M RETAIL LTD. and
they say that your bill is not genuine you have purchased it from PLANET M RETAIL LTD. so we donot service or replace your product.

address of service centre & showroom :CG-01 Ansal Plaza, Hudco Place Khel Goan Marg, New Delhi 110049

ORIGINAL BILL is attached with this complaint