Theft by Capitec

I have v come to America to work as a result of Covid and the resulting economic crisis is SA. Capitec have been most unhelpful in receiving funds which I’ve transferred to SA. 7 days later and still no funds are available and when I email them they don’t even bother to respond despite the automated response claiming that they will do so within 1 to 2 working days. The money seems to have disappeared on Capitec bank’s side!! They are sitting on a large sum of money which does not belong to them and now refuse to provide any explanations as to where the funds are!!