Blocked card

I received a sms form capitec informing me that my card was blocked, to my surprise I called the bank and was told that I should go into the branch as I have been reported for mobile ***** which I was shocked because I had not received any money from anybody. My card had been ****** and because I hardly use my capitec card I did not notice until I was told of this by the bank and called immediately to have it blocked but I was told I was to late. I have tried to clear my name and requested that an investigation be done on both parties because its surprising how this person claims to be *****ed when her phone was never done a sim swap but money was just transferred into my account from his/hers. Kindly please help clear my name. I am so disappointed with Capitec as I am labeled a ******** for something I have no idea what is going on