UNPAID DEPOSIT

I used Stor-Age Constantia Kloof for over a year. When I moved I followed the correct process with regards to notice and I made sure that all my belongings were out on the day that they had requested. Their terms & Conditions state that the deposit I paid would be paid back within a month of moving out....it has been 6 weeks now. They do not return calls, when I do get through I cant get an answer as to what the delay or problem is, they completely ignore emails but confirm that they have received them when I phone. I have escalated the matter to head office who also couldn't be bothered to respond or acknowledge my emails. I am honestly disgusted at the service and would not recommend anyone using this facility