Was it like this?
Dear Mr Hatch.
We r pleased to informer you that you have paid to much Tax nad are getting a refund.
All we need to perform this simples task is:
Bank account number
Sort code
mothers maiden name
Date of Birth
Once we get this info we will screw you over, i mean, forward the monies to you sharpish, innit.
Regards,
F R Audster
Nigeria