✔ 最佳答案
Dear (Boss's name),
With reference to the dfference in my salary for the past two months, I would like to have the chance for a review.
Originally, I was getting $A for my salary. However, it changed to $B from last month. Could I know the details or the reasons for such a change please? Is there any technical error incurred? Is it due to any mistakes that I have made? Please kindly advise.
Should there be any inconvenience caused, please kindly forgive me.
Regards,
Your name
P.S. I agreed that you should keep record of all the e-mails sent and received so as to protect yourself. Hopefully I can help you.