Fixed rate on homeloan

More than 2 weeks ago, I app**** for a home loan fixed rate, Nedbank decided not to process my application because they knew repo rate was increasing so that they can charge my fixed rate more based on the new repo rate, which I don't understand why I was treated unfairly, I made numerous follow up but they promised to call me back and never did maybe it's because am black hence the unfair treatment. A day after the repo rate was increased they recalculate the variable interest rate but they have not finalized my request to fix my interest rate. Now they are telling me they will have to recalculate my request based on the new repo rate, why bcz my request was made prior the new repo rate, why should I be charged more for fixing my interest due to their negligence and *********** employees who knowingly decided to to process my request so that they can charge me more upon the repo rate increase. Nedbank homeloans and credit department operate on ************** and unfairly treatment to their clients and I am so disappointed 😞 am even considering changing banks, worse part FNB offered me a better interest rate deal when I was buying my house but I decided to be loyal to nedbank but now this is making me regret my decision.