DTDC Courier & Cargo — DTDC Courier & Cargo dtdc courier not delivered (office closed or door lock

I was supposed to receive a courier package with Tracking ID X69023066 and reference No OH2264195. This has very important documents and the online tracking now says not delivered (Office closed or door lock - (Cir). They haven't sent me any communication regarding the same. I could only see this when i tracked it. They haven't given me any details about my courier. No customer care numbers or office numbers available. All numbers online seem to be put on hold. This is an important package and the service they offer is pathetic.