Billed After I cancelled my Subscription/Account

<p>I was Billed for April, after i cancelled my service/account with your Keywest Branch, Krugersdorp on the 17-18 February 2017. Person who helped me cancel the account was Deborah. She even gave me prove of cancellation, WHY am I again billed???? Please reverse and FINALLY CLOSE MY ACCOUNT.</p> <p>Invoice date 09 Apr 2017<br />Account no ********** 42679<br />Invoice No 704B ********** M</p>