My own bank cant help me stop a payment which is not yet cleared.

I amde a payment via my Credit crad this morning 19/08/2020.I called Absa within 20 minutes after i made the payment.As i found out the company i was purchasing from was a ****.The consultant told me to hold.Came back saying he can only reverse it after 24 hours.I asked if i could call in after 12 to try.Now when i call i get told there is no way i can reverse it.I must write an email to dispute the payment.If the bank cant help me as the payment hasn't even yet cleared.Is our money actually safe with them?