Account cancellation

I went to an African bank branch. I informed the consultant I would like to close my investment account. And I further gave them updated banking details for them to forward the amount remaining. The branch consultant said he can't help but will investigate the matter.why can't he help? because I once withdraw from my account. But promised the matter will be sorted.

With no response from the branch for over 5days I decided to contact them on tweeter. I clearly stated my problem and I was told to expect a call. I received a call which asked me to verify my personal information. I told the agent my id number and full name. Then I was asked the company contact numberI used to work for which I registered when opening the account. I mentioned the company and I mentioned that I haven't been working for the company for over 5years and I don't know there number. The consultant said she can't help me. So now it means I will never get my money. African bank keeps proving how stupid and *********** they are I am so angry.