Respected Sir/ Madam,
I would like to inform you that I am working as a ___________ (designation) in your reputed bank and I have been serving the _________ (name of the branch) branch for the last ______ (mention duration).
Through this email, I would like to bring into your kind consideration that I have been transferred from __________ (branch name) to _________ (mention name of the branch) but I have not yet received the transfer letter for the same.
I request you to kindly issue the trasfer letter. I shall be obliged for your quick response. For further queries, you may contact me at the contact details mentioned below.
Thanking you,
Regards,
__________ (Your name),
__________ (contact details)