New and Old land line number

<p>We had an account with Telkom, an old account that was in arrears, I settled it and we took another line, as I opened another account. We informed Telkom the end of April 2016 to end the service of the old line. The new account is being handled by my daughter and is paid up to date. I now receive invoices for the line that had to be cancelled! The phones just ring, ********** 210.Please help.</p>