Refund

I opened an account with Nedbank, for the purpose of wanting to use their 24hr notice account, i deposited a small amount into the Premium investment account to test it and was told that it was not the minimum amount required... fair. I then requested, twice, that they refund the money transferred into the main account and it still has not been processed after almost a week from the first request and after 3 days of the 2nd one...