I'm making a web site. (3)

I'd like to post the follwing sentences on my web site. Could you check them?

About cancellation
We can't back the lesson fee to you after payment, but you can give up your right to other person.
In that case, please let you know to me the person's name and Email address or cell phone number.

No refund after payment has been made. However, a paid lesson can be transferred to another person. Please provide the name, email address, and cell phone number to whom the lesson will be transferred to.