TAKEALOT CREDIT STOLLEN!!!!

Hi all WARNING!!!!!! Do not keep Credit on Takealot account. I got a Credit refund of R1400 for returning items and within +-3 hours "Someone", used all of my credit to buy 14 x R100 MTN digital airtime vouchers. Of cource Takealot says it is my account that was hacked and still investigating. How did these guy know about my Credit??? And so fast?? DON'T GET CREDIT ASK FOR A REFUND!!