Unhappy customer

I am utterly disappointed with the service from Discovery I requested to make amendments for a resubmission to be made on my wife’s banking details this was made on August 23rd on August 26 an email was received stating that banking details update is in process & will be updated. This morning I wake up to the resubmission made on my account & not my wife’s account. I don’t know if this is incompetence or Discovery is being arrogant with my request! I am charged for debits going off on my card mind you there’s currently no funds in my account who is now liable for the cost of this unsuccessful debit?

I am really unhappy & need this fixed now!