Banking details verification takes 21 days?

I was asked to verify my bank details with SARS this season. I have done that the consultant said my refund money should be in my account in a few days. A week after I called the call centre and they said it will take a 21 day period for my bank details to be verified then the payout can be made. Is this true?

This is true yes, SARS takes 21 days to verify banking details.