@Mac ********
your download will not be accepted by immigration. You need two letters on bank letterhead, one stating that the account is yours only, and the other showing your balance for the last two months minimum if this is your first one year extension, and twelve months if this is another one year extension, and, these letters at most immigration offices can be no older than seven days old. You also need an updated bank book showing the current balance on the day you apply. You can not use any printout you get from the banking app on the internet.