ABSA debited me twice

Good Day , I am ANNOYED with ABSA. On Friday , 15 April 2016 I went into Unisa to settle my account with them. I paid Unisa R2600 on Friday and was notified by SMS that the money went off my account. On Sunday 17 April 2016 at 16:37 I received an SMS from Absa paying Unisa again the same R2600. Why was the cash deducted from my account twice? I need the R2600 back in my account today!! Can this cash be reversed back into my account today. I sent a request to [Email Removed] yesterday morning and to this hour I have no response. ABSA is quick to to take my money twice but not quick to respond and give me my money back. I complianed on Facebook as well and was told that the amount would be credited back to my account within the next few days. What is a few days when I need my money now!!! ABSA is a annoying bank that has no clue what customer service is. Over and above this I'm sitting with a cheque card from ABSA that does not work and each time I go into a branch I get told that their useless card works. It's not fair that we as customers need to suffer at the hand's of *********** people while we are being billed each month!!