Mango airlines broke items and didn't take accountability

The airlines did not want me to take a sentimental item (award from my company) on the plane as hand luggage. I was told it must be booked in as fragile and it will he in good hands. I informed the booking attendant that the item will get damaged, as i feel uneasy handing it over as fragile goods. Still they didn't want to assist (item was small enough for hand luggage). I had no choice but to hand it over. When i arrived at my destination, my award was in pieces. I reported this to Mango at the airport and a form was filled in. I was given the details of Mango care centre and informed to email them. I mailed them and informed Mango about my experience and damages. I got a reply saying that goods are transported at own risk and they will not reimburse me for the damages caused. Pathetic service, as i expressed my concerns numerous times on the possibility of damages and the item too fragile for check in items.