FNB Deducting money from my account as soon as my Salary get in without explanation

<p>This is the second time. My salary just got in and immediately R2248.87 went out with reference FNB CARD ********** ********** 161122 which is my credit card but it's not reflecting in my credit card statement. The same happened last month and R2308.64 with reference FNB CARD ********** ********** 161021 and it only reflected on my credit card after I called. I called the customer care several times for them to explain to me whats happening as this is more than double my monthly instalment but they say it's done by another department and gave me this number to call ********** 595 which is never answered and says the voice box is full. I called the custmer care again several times advising them that I can't get through to this number and am always told that they are the ones who can only help me and they are always busy so I sould keep trying. Now I don't know who to talk to. I tried the credit card department who referred me to customer care who finally gave me this number which just rings. I wish someone could atleast talk to me and explain what is happening as I am losing a lot of money which I don't know where it is going, now my budget if off again and the number still not being answered.</p>