Server unavailable, no customer support response – FAX from iPhone - Send Fax App Review

I bought the app and the credits to send faxes. For two days I have received a “server maintenance” message saying it is unavailable. Which makes this app useless. I filled out a customer support ticket on the app, no response. If this continues for another 2 days, will report this app to Apple as a developer who is not delivering on their product and is taking money from its customers.
Review by IrishRN83 on FAX from iPhone - Send Fax App.