I have paid more income tax than I was liable for.

John Phoenix (1 Points)

23 June 2017  
This is however not due to problem in assessment. I was erroneously paid a higher salary by the treasury for a period of 4 years. Treasury, upon realising the same asked me to refund the extra amount paid which I did. However, I had paid the tax as per the higher salary. How do I go about asking for a refund?