After delete all old ResoureGroups and do it again, thing done well now !
http://prntscr.com/jhs21pI will looking at the bill to see if it really cost lest than 150$

If possible please add some options to the script : wokername and email to notify.
Thank you for the script.
I'm glad to hear that it's working for you. Thanks for the suggestion about the workername. I'll write up the options for adding a workername in a later post.