old brickpads that the dealer is refusing to replace on a demo car i just bought

I bought a car in september on the dealer ship and they told me its in a good condition,they reviewed it and when i released that my brickpads are finished and i bought the car in september ,i saw the problem october i told the dealer about the issue.the manger said he can not replace them i must buy my own brick pads.the warehouse manager said they will not reach another six month, but later on changed his mind and he said if i drive carefully it will reach the next service which is in 12 months,im really sad because i bought a demo car i not expecting to be expending so much money on it already.i feel like the dealership was not honest with me