Am really lost of the bank’s long processes.

I actually don’t know who to speak to now because I have been calling and emailing for the past 3 weeks. We opened a business account and I was added as a secondary user. We send all the required forms and yesterday I received a call that the process had been done I can now transact . On opening and trying to transact I keep getting error message that I am not authorised. How does this bank really work that I can’t access an account that I have now changed my clients to pay into.

I even got a reference number ***0 that is was done but I called 10 times today with no luck and last time I was told it was done I have to go back to the person who did it. How do I know the person when all you get it automated messages.