Zingbus — Driver Didn't arrived / picked up at the pickup location

My booking PNR is ZB[protected]. I arrived at the pickup location atleast 15 mins before departure but the bus never arrived at the mentioned pickup location on the zingbus app, nor I received any call from the bus driver on change of the pickup location. since the bus time was up, I called the driver and he started making ridiculous excuses that the pickup point was different. what type of service are you guys offering. my number was all time available and without attempting to solve the issue, he was asking me to reach the zingbus support. Till the time I reached the zingbus support he left and there was also no direct number for zingbus. please help to sort this. I didn't expect such service from you.