Standard Bank ****py service

I am very disappointed with Standard bank . I called in last week thursday to limit on my existing revolving loan account. I was pre-approved. I sent all the required documents to *** with my ID number as subject. Up to this day I'm still waiting and waiting. I sent several follow up emails and no response. I called their customer care line still I'm not getting any help. They keep escalating the issue until Jesus comes. It is so disappointing that i have to go through all of this just to increase my limit. I pay my loan every month there's absolutely no reason to be treated like a ******** . I don't know how long i need to wait to get my limit increase approved. Seriously i am tired of this bank. As soon as i settle this loan i don't want anything to do with Standard bank