Shocked by the service Received from the Fixed Investment call Centre and Service centre

I called Nedbank day before yesterday. Spent an hour on the phone trying to get assistance to invest my dads retirement money. thinking that since its a massive deposit and investment( therefore a sales opportunity) the agent on the other side would be willing to help me. I conferenced the call with my dad, so he was authenticated,the only thing left was for me to do the application online, I struggled a bit, the lady on the phone promised to call me yesterday( that never happened) so I called yesterday, explained the whole story again, that I wanted to invest my dads money etc and needed help doing it, the first person I spoke to asked me to hold and cut the call on me, I called back, held on the line and mentioned that if nedbank has a lot of customers and not really interested in looking for customers who have millions to invest, then let me know, I can go elsewhere, I just needed help as the application that I did online, I struggled with and could therefore do the application telephonically, the third person made me hold on for almost an hour and cut the call on me. i obviously contacted several banks looking for the best interest rate and Nedbank was one of the top banks offering a high rate. At the same time, you guys are not doing us a favor, if you want the business, deliver the service. I have had such a terrible experience, running behind you guys and I'm so appalled by the so called sales specialists who did nothing to help me, even if I had the opportunity I don't think I would do business with you guys. These investments are peoples livelihood, its money they have worked their whole lives for, we are looking to invest so that they can live off the interest. A day not invested is a day of income lost. Even after explaining this. all 4 people I spoke to could care less. Dont bother coming to Nedbank to invest your money. Dont be fooled by the attractive interest rate as the customer service that supposed to go with doesn't even compare. Im so disgusted. I would like for someone to pull all the call recordings, and listen to the calls and hold the relevant people accountable for wasting my time. I have contacted another bank and will accept the lower interest rate as the service I'm getting is way better. They don't act as though they are doing me a favor, they WANT the business. Totally shocked at how these people have treated me.