Lies Lies & no refund of deposit

We hired a car from this company and it was returned on the 10th October. To date we haven't received our deposit back. It is now the 25thOctober We were told on the 23rd that it would be repaid within the hour or latest within 24 hours. They send an e-mail saying problem resolved even though it hasn't been resolved When you use their link to their site it shows a "malicious link" warning from your internet security. A company that blatantly lies to their clients