Foshini account paid in full

In February 2018 I paid up my Foschini account, in March I received statement of R177.00 I ignored the statement because I knew I owed nothing. When the balance increased I then went to the Vangate Mall Foschini to query and I was told it was two cell phone insurances that I bought. I told them that the only cell phone I know is the one I bought in 2012 and I have lost the cell phone long time ago, then I cancelled the cell phone insurance and the magazines on the 28.05.2018. I was then told that Foschini has got nothing to do with cell phone insurances and was given a number to call. I called the number and the lady I spoke to told me that she was cancelling everything on my name and I was relieved, but to my surprise I’m receiving balance of R700.00 and more from the same account. Everyday I’m getting calls regarding this account I have been explaining the same thing to everybody who is calling me regarding this account. I am now getting tired as I know I did pay my account in full. Please help me as I do not want my name to be black listed as I know I owe Foschini nothing.

Yours Faithfully Dzano Simon