Universal Travels — Concern person number not working

I am very much dissatisfied with the service. Mu sister is going to start the journey in another 1 hour. Still, the number given for boarding-related queries is been switched off. I had been trying in the last 24 hours multiple times to ask for a query. I don't even know whether I will be taken by the bus as my journey is staring in less than an hour from now!!!