Honda Cars India Ltd. — navigation card of my honda city during service

Address:

Guntur, Andhra Pradesh, 522006

During service at express honda at guntur, andhra pradesh, my car navigation has been stolen which i didn't realized till the next subsequent service. During subsequent servicing, service person said navigation card is not available in your car. I contacted chief executive of the show room where i bought the car and he convinced that navigation card stolen. He instructed his service supervisor to provide a new card without any extra cost. But supervisor is denying me a new card. Now i am using my car without navigation and i stopped giving my car to service also. I am helpless and i didn't expected this from honda.