Where is the “+” icon in wallet app

Is your Phone's region set to the U.S?

Settings->General->Language & Region->Region?

Is your iPhone's country / region set to one where Apple Pay is available, and the Apple Card will be released in?

Currently Apple Card is available only in the U.S. Since you need a Apple Cash Card, and a credit evaluation by the U.S credit bureau, and the Card is issued by Goldman Sachs in the U.S only.

Make sure you're opening the wallet app from the home screen icon, not double clicking to bring it up as you would for Apple Pay.

Apple pay is not available in all countries and regions. Click below to know more.

Countries and regions that support Apple Pay - Apple Support

https://support.apple.com/en-us/HT207957

Abdelaal EL-Hayawan wrote:

I saw the video. I received the invitation. My Apple ID set for the US Store.

I am not in the US, but regardless where am I, the + icon should be available.

If you're using the U.S. Store but you are not in the U.S., you are technically in violation of Apple's Terms of Sale.

Did you receive an invitation to apply for an Apple Card? Have you tried a forced restart of your iPhone. Did you look at the video?

No, the iPhone knows where you are and if you are in a different region than the one your Apple ID/Credit Cards are tied to then you will not be able to add the card.

See this video:

Are your friends using a different VPN than you are. As you have apparently tried it in several locations on earth, did it work when you were in the US?