No service / staff surely does not know hoe to help

I called the FNB connect on Saturday 13 June to ask for a Proof of Purchase for a TV i bought by them. The TV is already paid for. I was transferred to 3 people and then cut off. I valled again and spoke to someone who asked all my info, from my adress tk nh account details , even my last transactions on my account, them the call was cut. On Monday 15 June i called again, and the person transferred me to the new sales department.

I have send an email to the complaints department. No word of them, no reply, no response.

I tried to log a formal complaint on the website, thr verification codes does not work

I tried to chat to the the team of bankers on the app, they also cannot assist. How am I supposed to get the info that i need if no one seems to be able or competent enough to help???

This is so frustrating