WHAT IS TEXAS' STATUTE OF LIMITATION ON RECOUPING A RESIDENTIAL RENT SECURITY DEPOSIT AND AN OVERPAYMENT OF AN EXTRA MONTH' RENT

When contacted on several occasions, Landlord repeatedly promisesd to pay but never delivered. He also received an extra paymet and kept quiet , for the last month rent of the contract, It was paid at contract inception as part of the initial deposit of 3X rent that included first month/last month and security deposit. The deposit amount is $4350, the last month rent is $4350.