Getting no response from ABSA

I have been sending multiple email enquiries to ABSA throughout this year trying to get things sorted out: travel insurance, my language option on my correspondence as well as the new DragonPass. I have also tried calling the call centre and have been waiting on the line as they seem to be \experiencing high call volumes"at all times. I do not get any reaction or resolution and think it is time to change to another bank. This terrible and yet expensive service is no longer cutting it. I need at least some kind of response from my bank. How can I trust Absa if they can't even respond to emails or answer phonecalls?"""