Did you like literally buy this car without really seeing it in person or test driving it. I know its a cheap car but every car I've purchased from a £700 banger to a 150k super car I thoroughly checked over, HPI, checked all doors open, boot, checked everything works, drove it to make sure it drove as it should and performed.
This almost feels like you see advert, buy it over phone, handed cash over and then drove it home. should have just walked away at first sign of damage, be plenty more for sale.