Hello,
Thank you for signing up for my lessons, and for supporting my work by sending your children to me for English learning.
I'm going to be reducing my lesson time from 35 minutes to 30 minutes, and changing the price from 1100 to 1000 yen. 
This is to help me with scheduling so that I do not have so many time table clashes.
If you have any questions, please feel free to contact me,
Thank you again!
Jonathan