Dissatisfied by Standard Bank. Over 10 years of banking with them.

I have entrusted Standard Bank with my finances for more than 10 years. I am considering changing to another financial institution as Standard Bank cannot grant or approve even a simple R200 credit for me in order to make my credit score improve. Can’t get approval for a simple overdraft whereas other financial institutions have approved me for car finance, loans that I have constantly paid without any defaults.

I simply can not understand how and why Standard Bank fails to approve anything on my name having trusted them with my finances for over 10 years. Other financial institutions easily approve my applications yet I don’t even bank with them. How does another financial institution approve a car finance for me and my bank denies me a credit card of R100.00?

What good sense does this make? What is the reason why I should be still banking with Standard Bank? Standard bank handles all my transactions. What makes the institution not to recognise all this and take into account?