Failing to pay out

Logged a claim on 15-12-2015 just for it to be processed in January around the 12 with the insurer willing to pay a ridiculous low price for the item issured telling me that they depreciate on the other hand they increased the premius when I dispute it they no longer want to get back to me they keep on promising to call me back of which is not happening telling me is an inbound call centre. When I took theiron cover they called me all the way now that they must deliver their service I have to incure additional cost calling them daily... to me it looks as if they are looking for a way not to pay bt wen it comes to debits they never delayed in taking my money I so fill mistreated. ..