Capitec blocking funds

I have moved overseas a year ago. SARS has paid my tax refund into my Capitec bank account. Capitec has changed their banking app and now I cannot access my funds. These funds are needed to support my family and Capitec is telling me I cannot access these funds anymore!! Is that not equivalent to theft???? I have mede contact with their call centre and the lady was trying her best to help me, but then the other department came involved and they are making ridiculous requests for me to provide “proof” of my ownership of this account. Really?? You contacted me on the registered email, and I cleared all the other security questions, but still you do not give me access to my funds... MY funds??? In this time where all money is needed to be able to feed children you make it impossible for me to access my funds!!!!!