Third world administration - Discovery Bank

I have had a Discovery Credit Card since it was first launched. When it was administed by FNB I had no complaints. Since Discovery bank administered it, my debit orders take 7 days to clear. What is the point of having a credit card if it takes that long to clear. If Fnb could clear debit orders within 24-48 hours why does Discovery Bank take 7 days to clear? My debit order went off on Monday 21 Dec and after I made a call today I got an email stating that my debit order will only clear on Monday 28 December. I called again today @16:19 to speak to a manager but after waiting 20 mins on my cell I realised Discovery does not value my business. If you cannot clear debit orders within 24-48 hours I might as well find another credit card. This is third world administration for a company that to suppose to be a market leader. Simply unacceptable Discovery