Standard Bank Incompetant

I Have been legally married for 10 months, using a new Surname with my New ID and as bank they have not picked that up at all, I eventually submitted my marriage certificate and new ID to a Maponya Mall branch last week , and the lady who assisted me said all is sorted. I just found out now as I am busy updating at work that i am still Ms Mboweni, Instead of Mrs Mthimkulu on their system. I had to make time to go into a branch to ensure my things are updated and now it is still not done. their call center says they can pick up I went to a branch but none of the things i went there for are updated. this is causing a lot of problems for me as I now use the Mthimkulu Surname everywhere else accept my bank "Standard Bank".