No response to communication, no matter what option is used

I have phoned, sent emails, filled in the complaints contact form on the Standard Bank web site and sent a message on Facebook Messenger. NO replies ever. I have been a client of the bank for decades and for the most part is happy with the management of my accounts. But the absolute disregard for a serious query regarding Standard Bank Trust is now ruining my perception of the bank. I sincerely hope SOMEONE at the bank at least looks at HelloPeter as this is now the last option I can think of. Maybe a sit-in at Standard Bank Superblock will work.