St Courier — Still my parcel not received

Address:

P.Sathiya Chennai - 600041.

My Cousin Booked One Parcel through ST Courier which he send from Namakkal to Chennai on 04/05/2023 and it reached in Chennai Guindy - Maduvankarai on 05/05/2023 . But they did not delivered to the address and we are waiting for last 7 to 8 days. As its very urgent Parcel need to be delivered we are in touch with the Guindy Maduvankarai office, and they are behaving irresponsibly and rude behavior and disconnecting the call and daily telling lie. And we went directly to ST Courier Guindy - Maduvankarai Office on 10/05/2023 they security not allow me inside and contact somebody through mobile they telling lie your parcel out for delivery. Daily i am calling to office they are not giving proper response.