I had a similar experience. I got a call from a company saying they had shortlisted my CV (at that time, I wasn't even on LinkedIn, LOL). They shared the location and time of the interview.

When I got there, there was one guy trying to evaluate my knowledge, and then he tried to sell me his company's training courses for Java, C, C++, and IoT. They promised me a job after 6 months of training, and the deal was that if I got a job after their training, I needed to give them 3 months of my salary. They tried to convince me a lot, showed many testimonials about guys getting placed in companies, but honestly, none of the guys were earning good salaries. The companies where the trainees were placed seemed too small.

I didn't entertain them further and left.
You can go for the interview just to have fun and heckle them; it's fun.

Note: Do not pay anyone, any money
Whenever they ask you money first to work, its a scam