KnowBe4 Regional Account Executive interview questions

The interview was scheduled for 1:30 PM UAE time. I joined on Zoom at 1:29 PM, but it showed the interviewer was on another meeting. I waited around 20 minutes until the call connected and then disconnected shortly after. I sent an email with a screenshot to support my point, and was shocked to receive a reply from the interviewer claiming I joined at 1:40 PM, which was incorrect. Zoom clearly showed she/He was in another meeting at the time. Her/ His behavior was unprofessional and discourteous. She/He should have investigated before accusing me of lying or joining late. Due to this miscommunication, I lost a valuable opportunity, which was very disappointing, especially with a company like KnowBe4.