On my lease that my boyfriend and I signed it says that rent is $995. We have been paying that amount since February of this year. Property manager says that they made a mistake and that rent is suppose to be $1145 and that they want us to sign the new lease with the proper amount and start paying that amount. We did sign a rental deposit receipt that showed the rent was $1145. But it states on the receipt "applicant also understands that the Rental Application submitted with this deposit is not to be construed as a Lease or Rental Agreement". Can they make us paying the new amount even though we never signed the new lease and still have the original lease on hand?