Worst Experience with Capitec Bank

I have had a horrible experience with capitec which is the bank I have been banking with for the past 7 years.They do not want to update my details because my first passport expired and I have a new one but my permit is still in the old passport ,so wherever I go I just travel or use both passports.So I am in the process of claiming my uif and provident fund but they want my proof of account and bank statement updated with the new passport number but Capitec is refusing to update my new passport .Other banks are doing it for their clients who have 2 passports with the same problem as mine but Capitec told me to my face that we are different from other banks therefore you should go to those banks not us.really dissapointed.My provident fund and uif hasn't been processed yet because of this..Capitec is holding everything back and I regret choosing Capitec as my one and only Bank,I even ran away from other banks , thinking that Capitec is the best but now I am stuck thanks to Capitec.