DOUBLE BILLING OF HANDSET INSTALLMENT- NOT HAPPY AT ALL.

I noticed that my July and August Statement has double billing of the handset installment I called three weeks ago on the 04th of August as I had noticed that on my Husbands statement for the ********** number he was double charged R43.86 for July and August and when I checked the statement for my number ********** all was fine. The ref number I got was 1- ********** ********** . I called today to do follow up and was told that my query had been cancelled, but I do not recall cancelling. CAN SOMEONE PLEASE REFUND ME MY R43.86 X 2 FOR JULY AND AUG. YOU KNOW I AM REALLY GETTING SICK AND TIED WITH YOUR SERVICE, FIRST IT TOOK A MONTH TO DO MY UPGRADES AND NOW YOU GUYS ARE DOUBLE CHARGING ME FOR TWO HANDSETS FOR ONE NUMBER????

Please sort this out and refund me my money. CAN SOMEONE CALL ME