Threatening that he will be sending the Sheriff

I had an arrangement with FNB Discovery Credit Cards to make a payment of R300.00 monthly which I did since the arrangement was made. I went under debt counselling from the end of February 2015. I was instructed by my debt councillor not to make any payments to my creditors as she is busy with negotiations with my creditors. This morning I receive a call from Leareil Williams working for Groenewald Lubbe Inc (acting on behalf of FNB). I explained to him the reason why I didn't made any payments to my account without listening to me