Thanks for not charging me for all the extra time you had to work on it.
Thank you for your work! It has really been a pleasure working with you. I will surely recommend you to other people and I think I will need some other things to be checked in the near future. I know it has taken you more time to work through it and thanks for not charging me for all the extra time you had to work on it.
I will make payment later on tonight or tomorrow morning at some point. Thank you again!