Spice Jet Airlines — lost products or stolen

Address:

Bangalore, Karnataka

I had left my bag in the airport which i got back but few things were missing my box of chocolates and when i asked them they told they don’t keep ‘food’ items more than 24he’s. But i did not know that sleepers also get stale and they took them off.
Basically the things the liked they took off and kept it the rest they gave it to me. Is this how you protect or train your staff to handle it with other people’s things