In some mobile internet systems your IP address is temporal and only assigned/used when needed so it appears hidden. Try some WiFi hotspot next time.
Bob
I'm trying to make a purchase online with a credit card. They except major credit cards but I don't see the credit card option when trying to check out. They said it's because my IP address is hidden. How can I resolve this issue? I connect to the internet on my laptop via a mobile AP through cell phone.

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