IT3b unavailable for 3rd year running!

As a taxpayer, I have to submit an IT3b. For the 3rd year in a row, this is unavailable on my primary transactional account via Internet Banking - other accounts are unaffected (for the first time). The call centre is entirely unhelpful. My branch doesn't respond to secure messages, and in previous years has refused to send me a copy.<br> How difficult is this? It used to work. Because the interest on this account is \below threshold"";get your act together!"""