Toyota — missing a part after servicing

Address:

Pune, Maharashtra

I have a toyota crysta model purchased in jan 2017. I have done three servicing at sharayu toyota pune. After second servicing we noticed navigation was not working. We mentioned it during third servicing. And that time they informed us that navigating card is missing. We were not informed about this card while purchase. We haven’t removed the card as we did know about it. So it must have been removed during second servicing of the car at sharayu toyota service center. I request you to please check if it happens regularly during servicing of the car. I also request dealer to replace the same.