Wow Old Mutual, your self service apps and customer service centres really suck!

I am trying to amend the beneficiaries on my policies. The web app is not working, it times out and gives errors consistently. I am advised to call the customer help line......Now here is where I have spent my morning.....you do not get further than entering your id number.......3 calls an two hours later, I am still listening to their 175 year service ****! What do I have to do to get this done?