I had it happen twice. First time I was applying for a front desk position. I get to the interview and it's a group interview for selling insurance. The second time it happened it was aflac. I was applying for an office roll and when I got on the interview call it turned out to be a group call for positions selling their god damned insurance. Before they could get deep into the presentation, I typed in the group chat that this was clearly a bait and switch, and dropped out of the call.