Still no feedback

Since my previous complaint on 30 September 2015 I still have not had a satisfactory response from the banks dispute department. I had a call on this date from one of your agents promising the matter will be looked into further and I would get a call again the following day. There has been no such call and any attempt to call the number given takes me to a full voicemail box. Reference number of my original complaint is 769577. It is nearly a year since money disappeared from my account and there is still no progress. I am now looking to pursue other avenues to get this money back plus compensation.