Worst experience ever

I have a refund due to me. After numerous calls and emails they just give the same answer. Before we went on December break I contacted them and asked about it and they said that it had been processed (after it was apparently processed previously as well) and that it should clear on the 24th. I have yet to receive my refund. Banking details were sent and co formed on November 24. I use this company for all our fleet renewals and this is just the most pathetic service I have received. All they say is it is being processed or already processed but nothing happens. It took 4 months the previous time to receive a refund!