<prompt> Human: So on February 14th I signed a lease for a 2015 Kia Optima. Today the dealership called me and said that they accidentally wrote in a 0 cents over mileage fee for every mile past 12,000. They want me to sign the updated one at 20 centsmile. Do I have to do this or can I get away with having an infinite mileage lease? Update: there is a provision in the lease that says if their bank refuses to fund the lease due to some error such as this, the buyer has the right to return the car and receive any payment back. This is a pretty fair term and leverage to ask for better lease terms. Say 15k miles for the same price  <response>: Over 30 years in the business here:More than likely KIA Finance or the bank they used will not cash the contract be cause its in error. Also, check your other paperwork as somewhere in that pile that most people dont read is a conditional sale disclaimer that states that any mistakes have to be rectified by you at the dealers discretion. Then you probably also signed an arbitration agreement, you should also have a copy of that.That said, your options are as follows; go back and re-sign; return the car and go elsewhere. Or, talk to a lawyerDont worry about a dealership ruining your credit. They are in no way a creditor and cant report you to the credit agencies. They may, if theyre assholes, poison the deal with the creditor and if you try to use the same creditor elsewhere you may be turned down. 