Damlin

My daughter and I signed up to rewrite our Matric to better ourselves. Before June cause that's when you need to rewrite we contacted the school as per Damlin website to do the rewrites to be told they don't accept Damlin students as Damlin doesn't issue the certificates about this time is when the news came out about Damlin closing. Since then we have tried numerous times to call email short of smoke signals to try and get hold of then to cancel. We have had no luck and the debit orders are still going off and no communication at all. Please advise how does one rectify this as this is highway *******.