Re：resignation from the pos to settlement clerk
I would like to let you know how much I have enjoyed my last three years at the hero company.hero company is an invaluable place for enriching my knowledge about financial field，I enjoyed working with my colleagues and I have learned so much things here.
Because I would like to take a new challenge and I want to meet people from all walks of life，I have accepted an offer from an insurance firm as a personal financial consultant. I would therefore appreciate it if you would accept my resignation effective from 8 march，20xx.
I would be very much obliged if you would kindly give me a reference letter before I leave. Thank you for all that you have done to make my work here both interesting and enjoyable.