Last year you helped me build a pair of apps for my Facebook page ([url removed, login to view]) that allowed users to listen to my SoundCloud feed and follow my Twitter feed. For some reason, neither of those two apps is now displaying. I would like to hire you to fix this and to add a MailChimp newsletter sign up app as well.
Can you provide me with an estimate of how much this will cost to do? Since it is just an update to an existing app that has already been built and just not displaying I hope that it will not cost too much.