Absolutely disgusting service

In trying to close my deceased Father's accounts, I have been treated with absolute contempt by this bank. When we approached my Father's branch in Herm**** (I am the official Executor) we were told that we must deal with their deceased recoveries dept. Now after more than two months of trying to get a reasonable response from them, I have been told that they are the wrong deprtment to deal with and I must take all the doc's to a branch. Back to square one after two months! I have also asked repeatedly for the contact details of their Complaints Officer and they just will not let me have them. I have also e-mailed their compliants centre, but to no avail. Absolutely unbelievable how badly they treat people!!<br> I suppose my last resort is to try and get the Financial Services Board to get involved?