Reneged on undertaking to arrange card refund

I booked in and stayed at the hotel the evening of 2016-03-19, with the intention to utilise my Sun Rands of R623 before expiry thereof and therefor booked my stay on the Frequent Guest website. After having paid with my credit card and checked out, on my way to my car, it crossed my mind that my Sun Rands were not taken into account, and went back to sure a card refund for the Sun Rand balance of R623. I was guided to complete a form in order to initiate a manual refund the following Tuesday (2016-03-22) since Monday was a public holiday. Until now (12:30 on 2016-03-31), no refund for the said amount reflect on my card account.