St Courier — Rude behavior of an authority reg

We are a cloud baking small company. We sent a food product on 20 of April 2023 to Thenkasi district and we were assured that it would reach within 24 hours by ST COURIER of Manamadurai branch Tamilnadu. When we asked this[protected] mobile numbered person (so called authority of Thenkasi branch) he did not properly address our issue and he hung up the call while we were speaking. He is not answering our call then after. Still (22 of April 2023) we don't know the status of our product. Please take an immediate action regarding his irresponsible action.