HAD DEBIT BLOCKED BUT IT STILL WENT OFF

I NOTICED A DEBIT GOING OFF MY ACCOUNT AND HAD IT BLOCKED AFTER A FEW MONTHS THE DEBIT ORDER WENT OFF AGAIN , I TRIED TO PHONE THE *** NUMBER ONLY TO FIND A BAD RECEPTION AND THE PHONE WENT DEAD , THE CONSULTENT DID NOT EVEN TRY AND PHONE ME BACK , IM LOOSING MONEY THROUGH ABSA HELP.DEBIT TLC