Thank you for your response.
What you are obligated to pay is only what is specified in your lease.
If they can prove an accounting error or human error in calculation, they can fall back on the provisions of the lease that say what you owed upon move in and acceptance of the contract. You have a right to argue that you paid in full according to the receipt you have been given, but their legal counter is you paid in full the erroneous calculation and the lease still mandates what you have to pay. Thus, if you were to sue them over this the court is going to have to fall back to the lease I am sorry to say and that means you are going to end up paying the amount specified in the lease.
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