You try to prove to me that you have not lied to me and to follow the promise to me that will finish the work within one week and do not want to claim more money from me again.
You try to prove to me that you have not lied to me and made the necessary commitments to me that the work done within a week and not have to claim money from me.
You try to prove to me that you don't lie to me, and do the promise to me to do the work done within one week and not to demand more money from me again