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Please let us know the form's url so we can run further tests.
To make sure I understood you correctly, you created a form as PDF and the phone, email and country fields are not working:
PDF forms are more directed to printed versions. So from my tests only text-box, text area, full name, address (except the country) allow digital editing.
You can test it here:
If you wish to digitally fill in your PDF form it is necessary to use one of the PDF editors available. Some are free to use.
Or as an alternative you can use Aplidok app that will create a filled PDF from the online filled in form:
Let us know if we can assist you further.