I think I got scammed by momentum solar sales, what to do?

A salesman from momentum solar couple days ago and spent hours to explain the product, I was not sure if I want to use the product, but he said I could sign the contract first, and spend some time to consider it. If I don't like it, I can cancel it within 3 days. Therefore, I signed and think about for sometime and decided not to use their product.

However, I decided to cancel it on the second day, but the salesman keep acting dumb. He does not pick up my calls, and when I text him to cancel it, he ignore my txt and respond: I will be sending someone to do the roof inspection.

Then, I call the company, and the team manager told me that he has canceled my contract, on Friday ( 1/14/2022).

However, I see that the loan company has made a small test transaction on my bank account today, which I think the team manager might not cancel my contract.

I tried to call to the team manager but he is not working during the weekend.

What should I do in this case?