Diag Partners interview questions

There was a first interview call to ask about your work experience and describe the inventory process then s second call with simple questions how did you hear about this job and what have you heard about the inventory process from the first interview

Everything was great until the third step. Step 1 was a phone screening. Step 2 was a second phone screening with a different employee. I was told I had great experience that aligned and I was a great candidate for Diag Partners. Step 3 was a virtual video call interview that was scheduled. The interviewer called my cell at the time of the scheduled video call interview to tell me they were not going to do the video call with me anymore because they already gave the position to someone else. I took time away from my current full time job, reserved a room in a coffee shop, prepared, and put on a blazer for this video call. I would have appreciated a heads up.