KLA MARKETING - A SCAM

I was invited for a focus group last evening, I left work early to attend the discussion at 17:00. Upon arrival the receptionist requested for my ID to scan which she did then informed me that I had attended a focus group 5 months 2 weeks ago. She then informed me she will request for a for a release from her superiors. We then proceeded to a room where the focus group commenced at 17:05. The group was facilitated by a woman( Busi) and ended at 19:00. We were then informed that the incentives would be paid in the next 48hours. Today date 17/08/2022 I received an email informing me that I had attended a focus group a week ago which I didn't and apparently the facilitator claims that she had interviewed me a week ago which is a lie. If they felt that didn't meet the criteria was was I not informed when I arrived also they had phoned me during the day why was I not declined to attend because of not meeting their criteria. I had to drive all the way using my petrol, then participate in the discussion using my opinions and feedback, just to me informed the following day that I will not be paid due to not meeting their "screening criteria". Please make this make sense. Why do you use people?