Standard Bank service level

I have tried contacting 3 different departments within Standard Bank and I'm not receiving any response, what so ever. 1. Home loan: My home loan is sitting at 9% (prime is 7% less) I've requested a review - not once has someone followed up, even after I've submitted a complaint. 2. Car Insurance: I have a **** car accident claim against my name via OutSurance - I've asked Standard Bank for support and guidance (as I now have a sumons against my name!) but I receive no follow up. 3. Building Insurance: The last is a buildings claim - a municipal pipe burst and part of my property flooded. The assessors were out within hours - but the follow up final report - I am not able to get anything out of them. 4. Will Department: my mother is not able to get hold of anyone within this department and urgently wants to update her will. I've emailed every email address available to me - I've sat on hold for ages with no answer - I don't know what to do anymore.