AdPone interview questions

I applied on LinkedIn and after a few days, I received an email from the recruiter saying that they liked my resume and that we could set up the date for the first interview. In the first minutes of the interview, the recruiter said that actually, the position that they would offer is not the one that I apllied for, but one of an Account Manager and Media Buyer. It was not what I expected at all, and I don't know why I continued with the interview. At the end, the recruiter said she would get back to me by the end of the week but she never did. Overall, it was an unprofessional interview and I am sorry I wasted my time.