This was fantastic! I used to work in a call centre kind of job, so the general attitude of the MC really resonated with me. The tension build-up was fantastic.
Apart from the abrupt ending with no acknowledgment as mentioned below, the only other suggestion I'd have would be to use desaturated or darker colours for the background. I had to lower the brightness of my screen, as the yellow was a bit too strong for me.
Hope you make more like this!