INCORRECT DEBIT ORDER ON CONTRACT

TOOK OUT A 1XSMART INTERNET 1GB DATA CONTRACT IN JULY 2014 FOR R59.00 PER MONTH FOR 12 MONTHS. FIRTS INVOICE WAS FOR r555.64 AND ALL THE DEBIT ORDER EACH MONTH WERE LOADED FOR R225.00 MONNTHLY. HAD TO PAY R708.00 OVER 12 MONTH BUT I PAID R2456.00 MORE. I CANCELLED THE CONTRACT AT THE ALBERTONCITY MALL TELKOM SHOP IN AUGUST 2015, BUT THEY STILL DEDUCT FROM MY BANKING ACCOUNT AND I HAVE TO GO MONTHLY TO THE BANK TO REVERSE THE PAYMENTS. ACCORDING TO THEM I OWE THEM R901.00 FOR OCTOBER 2015. TILL NOW THE CONTRACT HAVE NOT BEEN CANCELLED AFTER NUMEROUS E-MAILS AND CALLS TO TELKOM CUSTOMER CARE. STILL RECEIVING INVOICES AND DEBIT ORDERS GOING OFF MY BANK ACCOUNT. THE TELKOM SHOP CLOSES TO HEIDELBERG IS INALBERTON THAT IS 45KM AWAY. I DROVE TWICE THERE WITH NO EFFECT.