Truist Bank (formerly BB&T Bank) review: Online banking

I have been a customer of Truist and its predecessor banks for more than 40 years. I am currently outside the United States, will return in about 4 months. Yesterday without warning Truist blocked access to my online account, which is where I receive my monthly pension checks, make bill payments, Zelle transfers, etc. I received a message with a number to phone at their fraud department. I called and answered all their questions (account number, recent transactions, etc.) However they still refused to unblock my account. They said I can only do this by going into one of their branches which I can't do for another 4 months.