Some customers who try to pay an invoice using iPhone's Safari browser may not see the Pay Invoice button. This occurs because the JavaScript setting on their iPhone is disabled. Use the following instructions to enable the JavaScript setting on an iPhone.
Open the Settings on your iPhone.
Scroll to the bottom of the page and tap Apps.
Scroll until you find the Safari app, and then tap it.
Scroll to the bottom of the page, and then tap Advanced.
Tap the JavaScript toggle to enable this setting.
Refresh the payment page to see the Pay Invoice button.





