What amount can i sew for false information, false advertisement and for paying for a Companies mistake?

I had to pay 600 dollars plus more and plus a cancelation fee because helio made a mistake and said information that was not even in the advertisement, and employees saying things totally different false information in Helios contract and advertisement...|||Small claims court.|||I think that if you look on the original contract, you have 10 days to walk away and cancel without owing a thing. I'm pretty sure that's a consumer law also. I would tell Helio to take it back and stick it.