DEBIT ORDER DID NOT GO THROUGH

I TOOK OUT AN INSURANCE COVER WITH HOLLARD IN 2013 AND IVE BEEN PAYING MY PREMIUMS WITHOUT MISSING MY MONTHLY DEBIT ORDER AND I RECEIVED MY CASHBACK IN 2017. MY NEXT CASHBACK WAS DUE IN 2022 APRIL AND IT WAS PAID HOWEVER TO MY SUPRISE THE DEBIT ORDER WAS NOT PROCESSED IN MAY AND TODAY I GOT MONEY IN MY ACCOUNT FROM HOLLARD, POLICY NO ***1 PLEASE ADVISE AS I DID NOT CANCELL MY POLICY PLEASE HOLLARD ADVISE ACCORDINGLY IVE BEEN PAYING AND IM CALLING ALL YOU BRANCHES WITH NO LUCK