Unauthorised debits back

Ive been banking with absa for a while now. I staryed ecperiencing unauthorised debits and all Absa could do was reverse the debit. I finally decided to change banks as soo as this unauthorised CLM ASURRA realised i do not keep money or get my pay in the Absa account they stopped deducting 100 because it would bounce back. Its been almost 18 months ive recently been using the Absa account now the debit orders have come back. I do not get paid into that account, i only deposit money into the account, and swipe or withdraw when using the card with no online sale. Ive tried calling absa as soon as i saw the notification message but the guy that helpt me gave me sage pay number , with no luck the number sage pay gave me just rings and goes to voice mail. Please assist me. The debits keep bouncing back because i only left R50 in the account. This company tried deducting twice with diffeent ref Absa: SAVE****, Returned, 15/09/17 NAEDO DEBIT ORDER UNPAID, REJECTED : INSUFFICIENT FUNDS, R100.00, Available R50.00. And. Please do something about this.