Update Notifications work only for 5 websites because of Api

This is a good idea of this plugin. But it isn't perfect.
1) We can not have automatic updates, only a notice to donwload plugins.
2) Because of the Api, we are limited to 5 websites. It's not possible to use it professionaly.
3) Even without this plugin, the dashborad of my clients showing this message :
"Please install the latest version of our free Update Notifications plugin which helps you stay up-to-date with the most stable, secure versions of WPMU DEV themes and plugins"
And I don't want it, because anyway I don't have more than 5 websites
This is really bad
I forgot to notice that in the survey reports yesterday. It should be the one most important thing to upgrade in your services.

How can I remove this red advertisement ? It's really bad to read that.