AVAF PATHETIC

I'm trying to change my banking details for my AVAF Account since the 6 April 2018, 1st the person overseeing the process was not at work, then 09 April after following up i was informed that the debit order details was changed. On the 25th of April to my shock i was debited from my OLD Account, and this transaction was returned as insufficient fund.... On the 26 April i was informed by AVAF that they will have to in investigate, with NEADO on why this had happend, WOW to my shock i was debited again on the 26.

On the 2 May i contacted AVAF again, again the debit order was not successful. On the 03 May i received an email from AVAF in forming me that they will load a T4 for the 03 May, i was amazed that the T4 run from may account, and thought it was now sorted and that my New Account will be debited for May. To my Shock on the 20th May my OLD ACCOUNT Was debited, so now i'm wondering will my NEW Account be debited aswell on the 25th .......

This service is unaccountable, in the same period my debit order details on my ABSA Credit Card was changed with no issues.... WHY DO I NEED TO STRUGGLE TO GET MY AVAF ACCOUNT DETAILS UPDATED.......