ENFORCED CELL APP BANKING THAT DOES NOT SUIT ME

I HAVE JUST ATTEMPTED TO PAY MY GRANDCHILDRENS POCKET MONEY USING MY LAPTOP, A PROCEDURE OF PAYING I FREQUENTLY USE. ONLY NOW, INSTEAD OF SENDING A COMFIRMATION MESSAGE TO MY CELL PHONE THEY ARE SENDING IT TO THE CELL BANKING APP ASKING FOR A PIN NUMBER. I HAVE NO INTENTION OF USING THE BANKING APP AND RESENT THE HIGH HANDED ATTITUDE THAT THEY CAN CHANGE THE PROOCESS WITHOUT ANY CONSULTATION OR ASSISTANCE. THEY HAVE NO REGARD FOR THE ELDERLY WHATSOEVER, ALL THESE CHANGES ARE TO SUIT THEIR BUSINESS PROCESSES NOT MINE.