Horrible bank landed in hospital, pregnant and they stressing me out

For many years I was convinced that standard bank is the best bank. Here I am sitting and crying my eye ***** out! I am heavily pregnant and my blood pressure shot up I landed in hospital for the stress they caused me. I lost my phones so I changed my number. It's been two weeks trying to register the number for OTP. Ive been to the branch twice and called for 5 consecutive days still no help. I have 2 business accounts and 1 personal acc. When we opened the first business acc my partner used his email and I signed also as business partner. Then a week later I opened a personal acc. I asked to set up internet banking, my banker used my business card credintals however put my personal email so that my business partner does not access my personal account. Fast forward to today, SBSA cannot change my otp because of whatever reason. I was told that only my business banker can submit the form on my behalf and shes on maternity leave theres no one else to help! I had a purchase order from govt department n i cudnt purchase goods becaei have no otp so I lost out on the tender, I owe rent at one of the business offices and they are terminating me as it's my first rental plus deposit and I cannot process payments so another "serious" client wants the office. I do not work at SBSA IT dept and not responsible for thier failing system. I cannot pay anything from school fees to whatever my hands are tied. These businesses both have a turnover of more than 3mil per annum. It might be small but it's clear that i am not valued and my accounts make no difference. So I am going to move banks because two weeks is a long time to change otp. I am fed up. They are so inconsiderate