bad customer service

For the past three weeks or more, I have been trying to get in touch with a lady named Mohau from the deceased estate department. I emailed her, called her direct line, and was even transferred to her office number. I can't reach her. Due to the fact that the account is with this lady, I spent a lot of time calling Wesbank and no one was willing to help me. I've been on hold for 30 minutes and it's really frustrating.