Bad Service

I have been communicating with this bank since 1 December 2015. Eventually a response was received after various requests for response on 9 February advising me that I need to contact a different department. From 9 February to date, no response, after NUMEROUS requests for a response in writing!. This also after I mentioned in my mails that they clearly are only interested in corporate business and does not care about any individuals. In desperation my lat e mail I mentioned their service is pathetic, but that also does not bother them. My request is to clear up an issue. They do not care!