Cannot buy credits. Unable to use app. – FAX from iPhone & iPad App Review

First off, 250 credits is misleading. It almost appears like you can send 250 pages, but from other commenters, it’s not so. Second, when I tried to buy credits, it didn’t work no matter how many times I hit the button, or restarted the program. I just wasted money on buying this app and unable to do anything. Can I get a refund?
Review by Gr4v on FAX from iPhone & iPad App.