Online payment faulty

I did online shopping on the Makro website , I checked out, made the first payment and Makro said it was unsuccessful, made the second payment and again, Makro said it was unsuccessful. Upon checking my account I noticed that the money was deducted from my account. Meaning I had paid twice . Its been over 24 hours now and I still don’t have any feedback from them, even though I have sent proof of payments . Whole purpose of online shopping is convenience, the only reason why I was comfortable to make the purchase online is because their website says “ safe payment options “ now I feel my bank information has just been exposed . What’s more frustrating is that I need that order urgently and no one on their end seems to be making this a priority yet clearly the error is not on my end or my bank . Their merchant has the fault ! I am so annoyed really