Maruti Suzuki India — mistake done by sales department

Address:

Nainital, Uttarakhand

I have perchance a maruti new dezire zdi on 30 oct 2017 from nainital motors haldwani registration number is uk 04 z0668 and i have not receive remote for music system at that time. Sales man told me than steering control system is in it that's way remote is not provide by company, but after a long time whan i use this i face problem to control it and i am a defence personal so i can not approach to dealer at the third service i got this information that remote is also available with music system so please help in this matter please.