No rufund

I orderd parts online witch they said they had in stock when I phoned an it shows over 10000+ in stock. I then paid online after witch I received a email back stating there no stock they need my bank details for a refund. After numerous emails, whatsapps and phone calls ( to very unhelpful people) seems like I am not getting a refund as no one can reply or answer me. The one department blames the next and no one seems to know that they even ave a online store.