Nestaway Technologies — Reminder for request approval

We are trying to reach an agent for property enquiry yet the agent isn't responding even upon repeated contact. I tried contacting him over the past few days, and have not recieved any proper reply, and suddenly I was told today after contacting his number that he has gone out of station. After that too, no other agent is taking his place during his absence? The agent's name is Mr. Sudeep Biste.