In that case your only recourse as far as I can see is if that is not a legally defensible way to structure the contract. You’d need to do some legal research or talk to a lawyer.

As far as finances, I’d someone is ever trying to convince you of something, it should raise your alarm bells immediately. Investing is actually in general very simple: put your money in to index funds unless you really know what you are doing.

Maybe you can cancel the policy and refund the remainder of the premium?

Also, never, ever ever pay upfront what you can pay later at no cost to you.