Trackon Couriers — Rude behaviour of the executive

Executive named chaitanya from tirupati, his rude behaviour over call is terrible. Tirupati track on has received our shipment on 26th of august and i waited for four days but they didnt call or inform us about the order and they updated status as "RTO"
I called up the given customer care number and he started yelling in bad words..i am filing a law suit against track on if i dont receive a reply to this msg within 24hrs
My father is a lawyer and i will sue your services for such pathetic executive behaviour