Non Existing Customer Service

We have banked with Standard Bank for more than 20 years. Personal and Business. Their customer service is the worst I have Ever come across. It is iMpossible to get through on the call centre and they do not answer emails. We are waiting for our title deed for months now . They cannot find it and even our attorneys say that they do not answer their phones or reply to emails! It is impossible!? What do we have to do to get a response ! It is a disgrace.