Courier IT payment issue

I WORKED AS AN OVERFLOW ASSISTANT FOR COURIER IT...... I LEFT IN THE MIDDLE AUGUST AND I WAS NOT PAID TILL TODAY..... THE OWNER DRIVER WHO WAS SUPPOSED TO PAY ME NEVER DID AND I TOOK THIS TO THEIR HEAD OFFICE..... NOTHING HAS HAPPENED AND I WAS TOLD THAT THEY WILL SORT IT OUT BUT NOTHING..... ITS THE THIRD MONTH I HAVE BEEN WAITING FOR MY PAYMENT.....