Capitec unknown purchase from my card

R735 have been deducted from my monthly allowance as a purchase on 02 may,mind you by that time I have a card on me and my phone along with me.it was around 6 at night, and then the notification popped up on the screen and I was like wait what is this that I see,I then immediately bought airtime in Oder to place a call asking for assistance from Capitec client care number,then an agent picked up said was gonna check for me and the client did check and they told me they would get back to me,and then they never did.in the morning I had to go to Capitec bank branch where I was told that I should wait for atleast 14 days or so.i went back after that 14 days and I was told to go back since they said it might be above.then a month passed by n I went back only to be told that the investigation is not over and I should wait they will get back to me after the investigation is done, it's even the end August I'm still waiting for my money.i had to change cards as they promise that money will be refunded even now it's not!!!