i just bought a used car on last week. When I boug...

i just bought a used car on last week. When I bought it, the seller told me if the car have any problem during a month. They will fix it. Second day, the tire got broke, even I just drive 2 mile.when I came back to fix it, they told me I should pay for it. I really feel upset. I really don't recommend people to buy car on here. They aren't honest. shame on him.