Bad service

On the 25th of October 2021 i filled out a debit swap form from FNB and i called Assupol and informed them i changed banks, i was advised they will update my banking details which i relaxed and thought everything was sorted. on the 25 of November the debit order was unsuccessful i called, the lady advised me that it takes two months to update the banking details , today which is the 20th of December 2021 i received an sms that attempt to switch my debit order was unsuccessful. I want to khow what the hell is going on because i have been trying to call them there is no answer , the lady answered and dropped the call of which i find it disturbing my policy number is ASDIR***. AND WORKING FROM HOME IS NOT AN EXCUSE!!!