Account paid up!!!

I received an email yesterday from SSDA requesting payment I have cleared and paid this account in April 2015 and received my clearance letter from SSDA I was also promised by Tebogo the agent that assisted me that the account is closed please stop harassing me for money I no longer owe!!! I didn't receive any correspondence from April and now out of the blue I receive this message which is totally unacceptable <br> <br> FINAL OPPORTUNITY<br> <br> YOUR ARREARS Finchoice ACCOUNT NUMBER *** WITH AN AMOUNT DUE OF R 1 113,65<br> <br> Please remove my details from ur system as finchoice as listed my account as closed on ITC so u are no longer acting on behalf of them but urself