Bad service with my money

Hi I'm Thatohatsi Mahlobo I have had a very bad experience with Nedbank for the past few days I have received money from Liberty Life for policies that I surrendered and I was notified that it will be into my account after couple of days. After receiving funds I started spending, transacting, swipes then my account/profile was suspended I went to the branch in Montana to be helped I didn't get the help I wanted they refuse to unsuspend or release my funds, today is my second day back to the branch with the supporting documents proving that I'm the rightful owner and to prove where the money is coming from and liable to all transactions happened into my account. Whenever I call I'm taken for a ride because it's one department to the other and they tell me they are not sure if it was me doing the transactions but how possible cause I'm at the branch now and confirming everything, my cards are blocked, accounts, app not working how am I suppose to continue with my day to day stuff if I can utilize my account. I was sure that Nedbank they take their clients seriously but I see if you black and receive money they don't question but when u start using it they want to ask questions???