Dear Amber/Susan,
I would like to take this opportunity to thank you and teacher Susan for your great job on my English improvement.
To be honest, teacher Susan is not only my English teacher but also one of my best friends.
She always provides me with the best impression and good learning experiences,
I’m feeling that my English communication has been improved obviously.
Now I can communicate with my customers very well with great confidence,
Thank you again and great support from Amber.
Since I’m satisfied with you all, I would like my son to join me to improve his English as well.
Best regards,
Jone,Xu