Reversal

I'm really not happy With this bank. I purchased food online and they ddnt have any drivers, so they told me my money will reflect after 72 hours. Call the company I bought food from, they told me they did reverse my money and they sent me proof or reversal. And they advised me to call my bank. I called standard bank and they lady told me she can not me my transaction she has to see with other departments I should hold on. Waited for 30minutes on my phone listening to their music and no help. What kills me is that had the same issue with another bank but my money reflected the same day. What so special about standard bank to take weeks for my money to reflect