I have problem with adding Visa card

Hey there,

Where are you trying to add your Visa card? Are you trying to add it to your Apple ID account?

if so See this Article ☞ Change, add, or remove Apple ID payment methods - Apple Support

or if you see your card is declined See this article ☞ If your payment method is declined in the App Store or iTunes Store - Apple If you are trying to add it somewhere else let me know!

You can contact them by this link ☞ Contact Apple for support and service - Apple Support

And what did Apple Support tell you when you contacted them as you were instructed to do by that message?

You can't 'text support'. You need to call them.