By error, the business that was holding the contracts on our feed bill accidentally sent them to us as paid. Do we still owe the money. Since we didn't pay the contract off in the amount of time stated, they penalized us and increased the interest rate. We have been in a dispute and they have contacted a lawyer. We made an offer to pay them $10,000 which is less than the amount they say we owe. Although, now they accidently sent all of the contracts to us as paid. They sent us a letter by Federal Express asking us to return the paid contracts. Legally do we still owe the money, since the original contracts are in our hands stamped paid.